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trunk line

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trunk line (鐵路的)干線；(電話的)干線，中繼線，長途線。

(鐵路的)干線；(電話的)干線，中繼線，長途線。 “trunk“ 中文翻譯：   n. 1.樹干 (opp. branch); 軀干，身軀 ...“line“ 中文翻譯：   vt. 交尾。 “trunk, trunk line“ 中文翻譯：   中繼線“axillary line of trunk“ 中文翻譯：   軀干腋線“central office line trunk“ 中文翻譯：   局間中繼線“crude trunk line“ 中文翻譯：   原油輸送干管“dead level trunk line“ 中文翻譯：   備用中繼線; 空層中繼線“dead line trunk“ 中文翻譯：   空號中繼線“dead-level trunk line“ 中文翻譯：   空層中繼線, 備用中繼線“direct trunk line“ 中文翻譯：   直通中繼線“flt free line trunk“ 中文翻譯：   空閑線路中繼線“free line trunk“ 中文翻譯：   空閑中繼線“graded trunk line“ 中文翻譯：   分品中斷線“head in line with the trunk“ 中文翻譯：   頭部與軀干成一直線“incoming trunk line“ 中文翻譯：   引入中繼線“key ended trunk line“ 中文翻譯：   端接電鍵中繼線“line and trunk group“ 中文翻譯：   線路和中繼線群“line test trunk“ 中文翻譯：   線路試驗中繼線“ltc line trunk controller“ 中文翻譯：   線路主體控制器“ltt line test trunk“ 中文翻譯：   線路測試中繼線“main trunk line“ 中文翻譯：   主要干線管道; 主要干線管路“midclavicular line of trunk“ 中文翻譯：   軀干鎖骨中線“milk line of trunk“ 中文翻譯：   軀干乳線“optical cable trunk line“ 中文翻譯：   光纜干線“optical trunk line“ 中文翻譯：   光纜干線

trunk main

For long - haul high bit rate trunk line optical fiber communication system and metro optical fiber network , a semiconductor optical amplifier ( soa ) is the most promising component due to its all kinds of properties and small dimension , compactiveness , low drive voltage , such as in optical network solutions , polarization - insensitive semiconductor optical amplifier ( pisoa ) is a popular candidate as optical gates . but the polarization - insensitivity over large wavelength range is requested . the purpose of this thesis is to develop a soa which is polarization - insensitive and has large 3db bandwidth 隨著寬帶傳輸和寬帶接入以及全光網的組建和發展，大帶寬偏振不靈敏半導體光放大器( semiconductoropticalamplifier , soa )由于其易于與其它器件集成，體積小，具有快的動態增益響應，非線性好，飽和輸出大，可實現無損操作等特點，在光通信網絡中，成為光纖通信發展，全光網組建以及wdm 、 tdm技術成熟的關鍵部件之一，其中偏振不靈敏和大的3db帶寬是性能優良soa的重要指標，也是制備的技術難點。

Directional solidified cu - cr in - situ composites have high strength , high electricity but without such problems of interfacial contamination and low stability as in the conventional man - made synthetic composites due to self - driven engender in the process of directional solidification , so this composites are expected to be used as contact cable , which is made for trunk line electrification 定向凝固cu - cr自生復合材料由于具有高強度、高導電性，同時因其在凝固過程中自動形成而避免了人工復合材料中長期存在的界面污染、穩定性差等不足，因而在電氣化鐵路用電車線材方面有廣闊的應用前景。

Article 12 when determining the layout of buildings , urban planning departments shall , in accordance with the national standards for acoustic environmental quality and the sound insulation design standards for civil architecture , decide on the rational distance between the structures and the traffic trunk lines in order to keep the structures away form noise as well as the requirements on planning and design accordingly 第十二條城市規劃部門在確定建設布局時，應當依據國家聲環境質量標準和民用建筑隔聲設計規范，合理劃定建筑物與交通干線的防噪聲距離，并提出相應的規劃設計要求。

Through the ecological analysis of cities and towns , distribution in west region , the paper pointed out that it is necessary to carry out the ecological distribution , and set up an ecological control project of cities and towns , distribution , which depended on a base of natural eco - space and centered on trunk line of cities to distribute a regimental type of cities , group forming from the economic increase points of every provincial area 摘要通過對西部地區城鎮體系布局進行生態分析，指出進行生態化布局的必要性，構建了以自然生態空間為布局基質，在各省區經濟增長，點發展組團式城鎮群，而各組團城鎮群沿西部城市干線網絡化布局的生態調控方案。

Primarily is to since 1995 the trouble circumstance of the yangtze river upper stream classification proceed statistics , application the safe condition of magistracy of yangtze river trunk line synthesize the valuation way , and proceeds to the safe condition of the yangtze river upper stream of three year take the gauge of , find out the main characteristics of trouble , and proceeds to trouble reason degree row preface , synthesize to analyze the trouble reason , clear and definite to have to establish the three gorges water area the shipping the safety to manage the system , and can insure the ships sail , anchor with homework safety 主要是對1995年以來長江上游的事故情況分類進行統計，運用長江干線轄區安全狀況綜合評估辦法，對近三年長江上游的安全狀況進行評估，找出事故主要特點，對事故原因進行頻度排序，綜合分析事故原因，明確只有建立三峽庫區航運安全管理體系，才能確保船舶航行、停泊和作業安全。

Through a comparison between this characters of various rail transportations in b - t - h region , this paper discusses the goal , feature and principle of the inter - city rail transportation network planning , produces a scheme with beijing and tianjin as the center , 4 trunk lines as the frame of this transportation network , and discusses the location of stations and the running patlern of rail network 摘要通過比較“京津冀”地區各種軌道交通的特性，論述了區域軌道交通網絡規劃建設的目標、特性和規劃原則，并提出了規劃布局初步方案：以京津為中心，規劃北京天津、天津秦皇島、天津黃驊以及天津石家莊等4條基本線路，并對相應的站點布局、運行方式等進行了探討。

According to the statistical analysis , it is suggested that we should add 5 direct trunk lines from the end offices ( 6975 , 6977 , 8049 , 8959 and 6957 ) to the urban tandem offices to relay the voice traffic . this will help to reduce the pressure of the auxiliary tandem offices 根據統計和分析，我們認為應該增開6975 、 6977 、 8049 、 8959 、 6957等5個端局到市內匯接局的直達中繼，用以匯接市郊話務量，以緩解輔助匯接局的壓力，特別能夠緩解輔助匯接局中繼模塊緊張的狀況。

This thesis mainly discusses a few problems and countermeasures of the yangtze river waterway containerized transport . it makes a study of the yangtze river ' s feeder and trunk lines container freight modality and operation system , according to the engagement of the shanghai sinotrans changjiang shipping co . ltd ; and makes a further countermeasure study of the deeper development of existed problems and yangtze river containerized transport 本論文研究的主要內容是長江水路集裝箱運輸若干問題與對策，并針對上海中外運長江運輸有限公司( shanghaisinotranschangjiangshippingco . , ltd )所從事的長江支、干線集裝箱中轉模式、運作體系進行研究，針對存在問題和長江集裝箱運輸進一步的發展作了更深層次的對策研究。

This thesis is main analysis three gorges project to the great significance of the yangtze river shipping with main influence , make use of the safe condition of magistracy of yangtze river trunk line to synthesize the valuation way , to yangtze river upper stream water top transportation safety proceed take the gauge of , reason of detailed analysis trouble , find out the safe weak link that ascend of management , actual circumstance after join teetering the three gorges water area the water , bring up to establish the three gorges water area the shipping safety management system ' s speculation , provide the upper grade to test , then slice solid enhance the water on the transportation safe manage , and insure the three gorges water area the water on the transportation the stability of the safe situation 而近年來，長江上游船舶航行秩序不穩定，事故多發，安全形勢不斷惡化，使三峽庫區形成后的航運安全管理顯得尤為重要和突出。本文主要分析三峽工程對長江航運的重大意義和主要影響，運用長江干線轄區安全狀況綜合評估辦法，對長江上游水上交通安全進行評估，詳細分析事故原因，找出安全管理上的薄弱環節，結合三峽庫區蓄水后的實際情況，提出建立三峽庫區航運安全管理體系的構想，供上級參考，以切實加強水上交通安全管理，確保三峽庫區水上交通安全形勢的穩定。

Because of the original design standard was low , the horizontal angur rigidity is serious lack , when the high speed train passes , the exceed limit of the horizontal swing had affected the lifting of the main trunk line , these diseases had been existed earlier but had not been gotten to resolve radical , and along with the increasing in speed of railroad train , these diseases performance will be more seriously , it ' s time for resolve 同時提速列車對橋梁結構的動力作用增大，特別是對上承式鋼板梁。由于原設計標準低，橫向剛度嚴重不足，高速列車通過時橫向擺動嚴重超限等已嚴重影響了主要干線的提速，這些病害很早就存在但沒有得到根治，隨著列車提速，這些病害表現越來越嚴重，已到了必須整治的時候了。

Optical fiber communication keeps in rapid development , from trunk lines to subscriber networks , stepping into more and more areas of the modern communication . while code - division multiple - access technology has been employed commercially world wide , its application in fiber - optic network become attractive 光纖通信技術繼續保持迅速的發展，從點到點的信息傳輸到網絡應用，從干線網到用戶網，正逐漸深入到通信的各個領域，各種新技術得到開發利用。

Besides the protection of the modules themselves , dispersion is another factor we should take into account in organizing a network . for instance , the trunk lines of a trunk should be dispersed to different 155 mbits trunk modules and each 155 mbits trunk modules to different physical routes 除了模塊本身的保護機制外，在網絡的組織上要考慮分散度，如一個局向的中繼線要分散在不同的155mbits中繼模塊，每個155mbs中繼模塊要分配到不同的物理路由。

Article 37 to build noise - sensitive structures on both sides of existing urban traffic trunk lines , the construction unit shall , in accordance with the regulations of the state , keep such structures a certain distance away from the lines and take measures to mitigate or avoid the impact of traffic noise 第三十七條在已有的城市交通干線的兩側建設噪聲敏感建筑物的，建設單位應當按照國家規定間隔一定距離，并采取減輕、避免交通噪聲影響的措施。

Almost 150 , 000 passengers were stuck at guangzhou railway station by jan . 26 night after a [ b ] [ color = olive ] power failure [ / color ] [ / b ] caused by snow , ice and sleet stopped more than 136 electric trains in hunan province on the trunk line between beijing and guangzhou 報道中說，截止至1月26日晚，由于大雪造成的停電，致使廣州火車站內大約15萬名旅客滯留；而冰雪天氣同時導致京廣線湖南境內超過136列列車受阻滯留。

Nanle hongye chemical co . , ltd . is located at the converging point of three province ji , lu and yu , 106 country road and anyang - jinan road meet here , two trunk lines beijing , guangzhou and beijing jiulong railway just nearby . all of these bring quite convenient transport environment 南樂縣宏業化工有限公司位于冀，魯，豫三省交界處， 106國道，安濟公路在此交匯，于京廣，京九兩大鐵路干線相鄰，交通十分便利。

Distribution of cities , towns and other inhabited areas as well as factories , mines and trunk lines of railways and highways should avert the threat of mountain torrents ; for those having been built in places threatened by mountain torrents , precautions should be taken 城市、村鎮和其他居民點以及工廠、礦山、鐵路和公路干線的布局，應當避開山洪威脅；已經建在受山洪威脅的地方的，應當采取防御措施。

In 2000 year ' s “ shipping safety management year “ activities plan , the ministry of communications was clear and definite to advance the requirement of enhancing safety management in the “ four areas and one line “ . one line means the yangtze river trunk line 2000年，在全國“水上運輸安全管理年”活動方案中，交通部明確提出了加強“四區一線”的安全管理的要求，其中的“一線”就是長江干線。

This instrument can meter the electric level , frequency spectrum , carry to noise ratio , a / v , cobbly ratio , voltages of the ac trunk line and the battery . furthermore it can display the above information on the lcd and store them in the eprom 該場強儀可以對有線電視系統的電平、頻譜、載噪比、 a v比、系統不平度、交流干線和電池電壓等進行測量，并通過液晶顯示，結果保存于eprom中。

Since a 155 mbits trunk contains 1 , 890 trunk lines at most , it makes a greater impact than a 2 mbits one in case of a fault . thus the guarantee of network safety is a primary consideration in using the 155 mbits trunk 由于一個155mbits中繼最多可包含有1890條中繼，一旦出現故障，其影響面要比一個2mbits中繼出現故障大的多，因此如何保證網絡運行的安全性是采用155mbits中繼首先要考慮的問題。