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watercraft 1.駕船技藝;水上運動技藝。2.船只。

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This paper discuss a modeling and predicting means for nonlinear systems proceeding from nonlinear systems modeling and predicting theory , whch is based on drnn model . this means overcomes the fact that ar model is used only in linear systems , at the same time it connects itself with approximation theory symbolic statistics and conjugate gradient algorithm , and formulate a system of large watercrafts motion modeling and predicting which is based on drnn model , and simulate it 本論文從非線性系統建模與預報的理論及應用觀點出發,系統地闡述了一類適用于非線性系統的建模預報方法? ?基于drnn模型的建模預報方法,克服了ar模型僅局限于線性的情況,同時結合逼近論、數理統計等知識,運用共軛梯度算法,提出并建立了基于對角回歸神經網絡的大型艦船運動建模預報系統,并進行了仿真。

By research on the watercraft motions , the author analyses the grey characteristics of ship motions , then construct a new prediction model - grey prediction model . in this paper , the author make the stability analysis and error analysis to the new model , and make the numerical experiment with real data of ship motion 本論文立足于艦船的運動預報,充分研究了艦船的運動特點,從灰色系統理論的觀點出發,分析了艦船運動的灰色特性,從而對艦船運動建立了一種新的預測模型? ?灰色預測模型。

As far as improving the control level of watercraft vibration , especially improving the concealment performance and combat effectiveness of armada , researching the new technique and method which are agreement with ship dynamical equipment has the academic and practical significance 研究和探索適用于船舶動力裝置的振動有源控制新技術、新方法,對于提高船舶振動控制水平,特別是提高艦船的隱蔽性和戰斗力具有重要的理論和實際意義。

2 . based on the scheme of modeling and predicting of neural network , the auhor select a neural network model which is applicable to watercraft motion short time modeling and predicting according to the character of watcrcraft historical data 圍繞著基于神經網絡的建模與預報方案,在對不同的神經網絡模型進行研究的基礎上,根據艦船運動歷史數據的特點,對神經網絡模型進行了篩選,選擇適合艦船運動極短期建模與預報的神經網絡模型。

Guests can board one of the experimental watercraft and embark on a twisting , whirling , wild ride through a labyrinth of fountains , rock formations and whirlpools . the center for weather control usually uses this facility for testing out new types of navigation systems 3人搭乘的水上逗趣船,四周環繞著試驗用的作品如旋渦巖石噴泉等,宛如闖入迷宮一般,一會兒突然改向行駛一會兒突然團團轉,行駛方向完全無法預測!

In the end the predicting model is used in watercraft motion modeling and predicting , and the auhor analyzes the result of simulating . the result indicates that this ap $ j $ ifgx9 @ 1 % & itx means is reasonable and feasible and gains the satsfactory pmpose 最后將此模型應用于艦船縱搖運動的極短期預報,并從統計理論的角度對仿真結果進行了分析,分析結果表明該方法是合理可行的,確實提高了預報精度,加長了預報時間。

Polyphosphazenes are a relatively new type of inorganic polymer , serving as potentially useful candidates for being applied to fields of aviation , watercraft fabrication , petrochemicals and biomaterials due to their particular structure and unique characters 摘要聚磷腈是一類新型的無機高分子,具有特殊的結構和有機高分子難以比擬的特性,已應用于航天航空、船舶制造、石油化工及生物醫學等領域。

It is one of the requirements of product ' s form in the computer - aided design of aircraft , automobile , watercraft and household appliances , etc . however , most of methods adopted in the fairness are the methods applying on parameter surface “光順”是個工程上的概念,不同于數學上的“光滑” ,是在飛機、汽車、船舶以及家電等的計算機輔助設計中,人們對產品外形的多方面的要求之一。

At the same time with the development of mordern technology , watercraft steer automatization comes true . the “ non - paper plotting “ that mark by pc instead of by human , can decrease the cost of hardware and 同時現代科學技術的發展,使船舶駕駛自動化逐漸成為現實, “無紙化”的人工標繪,即剛計算機軟件模擬標繪的過程,在人機交互的界面下進行雷達標繪訓練,有利于減少硬件的投資。

The products mentioned are widely used in such fields as machinery , automobiles , aviation , watercrafts , railway locomotives , switch devices , elevators , air - conditioners , construction , cases and bags , furniture , kitchen , leisure articles , etc 公司產品廣泛應用于機械、汽車、航空、船泊、鐵道機車、配電開關裝置、電梯、空調、建筑、箱包、家俱、炊具及休閑用品等領域。

Boats and other types of watercraft , including things like jet ski ? , surf boards , canoes , etc . , are constantly exposed to water whether they are being used , or even out of the water as they are still exposed to high humidity climates 游艇和其他種類的船只,包括那些滑雪板、沖浪板、獨木舟等,都是經常裸露在水上,它們是否要用或經常放置在潮濕的環境中。

Older watercrafts , like dugout canoes , have been foundthroughoutthe world , but these are the oldest seagoing ships . moresignificantly , the next - oldest ships ever discovered in egyptare700 years younger , ward told livescience in atelephoneinterview 更重要的是,世界上第二古老的船只也是在埃及發現的,但其年代卻比這些船只晚了700年。

The scope that the production used is very wide such as oil paint , furniture paint , painting ink , atomic ashe , industrial watercraft , antusepticize paint , nanometer complex material , etc . scopes . inorganic rheological additive for industry 產品可被應用的范圍較廣:油漆,家具漆,油墨,原子灰,工業船舶,防腐漆,納米復合材料等領域。

This article emphatically introduce the controlling methods and resolving means about the weld distortion which is always met in steel structure manufacture like bridge , architecture , watercraft , stress vessel 摘要著重介紹了橋梁、建筑、船舶、壓力容器等鋼結構制造中經常遇到的一個比較棘手的問題焊接變形的控制方法和解決方案。

Fit for forging and processing for industry of auto , train , watercraft , aviation , mine machinery , petroleum machinery and hardware , necessary high precision forging equipment 廣泛用于汽車火車船舶航空礦山機械石油機械五金工具等行業零件的鍛造加工,是現代鍛造生產者不可缺少的高精度鍛造設備。

As a result , many countries ask new - built ships and watercrafts that enter water area of their countries to put in maneuverability calculating book and correlative test record 為此,許多國家都要求新建造的船舶及進入該國水域的船舶都要提交操縱性計算書和相關試驗報告。

The products of the company are widely applied in war industry , electronic industry , pcba surface mounting lead - less solder pallet fixture , watercraft industry , air craft industry , etc 產品廣泛運用于pcba表面貼裝無鉛過爐治具、電子產品、軍工、船舶工業及航空器等領域。

Mercury club & marina provides all types of boats for a fun - filled day , be it for water - skiing , wakeboarding , personal watercraft , or just simply cruising 美國水星游艇俱樂部提供眾多自行設計制造的豪華游艇,可供劃水,滑板及個人水上運動或駕艇巡游之用。

“ older watercrafts , like dugout canoes , have been found throughout the world , but these are the oldest seagoing ships 類似獨木舟等有些年頭的船只在世界各地都曾找到過,但是這些是年代最久的海船。