P - X多益單字3000 - phenanthrene 中文 - EN166

phenanthrene n.【化學】菲。

phenate
Three phenanthrene - degrading bacteria were isolated from soil samples contaminated by oil , which are capable of using phenanthrene as sole carbon and energy sources , and were identified to be belonged to sphingomonas , strain zx4 as s . paucimobilis , strain zx6 as s . aromaticivorans and strain eva 17 not being identified to species , respectively , based on the results of physio - biochemical tests and the phylogenetical analyses of 16s rdna sequence 實驗結果分述如下： 1 、本研究從石油污染土壤中分離到3株菲降解細菌( zx4 、 zx6和eva17 ) ，它們都能以菲為唯一碳源和能源生長。經鑒定3菌株都歸于鞘氨醇單胞菌屬( sphingomonas ) ，其中zx4菌株為少動鞘氨醇單胞菌( sphingomonaspaucimobolis ) ， zx6菌株為溶芳烴鞘氨醇單胞菌( sphingomonasaromatics ) ， eva17菌株比較獨特，尚未能鑒定到種。
Work on phenanthrene biodegradation not only is beneficial to eliminate the contamination of phenanthren from environments , but also can be valuable to understand the biodegradation mechanism and feasibility of other pahs , providing theorically and practically knowledge and control measurements for bioremediation of soil and other environment contaminated by pahs 對菲生物降解的研究，不僅有助于環境中菲污染的消除，還可幫助人們了解其它多環芳烴的降解機制及生物降解的可行性，為多環芳烴及石油污染環境的生物修復提供相應的理論依據和治理措施。
This thesis deals with the isolation and identification of three phenanthrene - degrading bacteria from soil sample contaminated by oil , the factors influencing growth of phenanthrene - degrading bacteria and degradation of phenanthrene , the routes of phenanthrene degradation , the cloning and expression of catechol 2 , 3 - dioxynase gene of zx4 strain 本研究分離選育了3株菲降解細菌菌株，并研究了其中一株降解性能異常突出的分離菌株的生長特性、菲降解影響因素、降解途徑及部分的相關酶基因。
The result shows that the sources of pollutant mainly include non - point - source , line - source and point - source , with nh ( superscript + subscript 4 ) , no ( superscript - subscript 3 ) , so ( superscript 2 - subscript 4 ) , phenanthrene , bhc , fe and mn mainly from non - point - source , nh ( superscript + subscript 4 ) , hg , cd , cod , phenanthrene , bhc mainly from line - source , and so ( superscript 2 - subscript 4 ) , dimethoate and cn ( superscript - ) from point - source 研究結果表明，地下水污染源有面源污染、線源污染、點源污染；其中屬于面源污染的污染物主要有氨氮、硝氮、硫酸根、菲、六氯環已烷、鐵和錳；屬于線源污染的污染物主要有氨氮、汞、鎘、 cod 、菲、六氯環已烷等；屬于點源污染的污染物有硫酸根、樂果、氰化物。
There existed differences between the effect of initial ph6 and that of initial ph7 in media on growth and phenanthrene degradation of zx4 strain . compared with initial ph7 of medium , the growth was better in medium at initial ph6 , and phenanthrene degradation , however , stagnated almost after 2d of incubation , madding against the complete degradation of phenanthrene . as increasing phenanthrene content , substrate saturation appeared in medium at initial ph6 , but not in medium at initial ph7 for growth of zx4 strain 培養基初始ph對zx4菌株生長和菲降解的影響比較特殊：培養基初始ph6時，與初始ph7相比， zx4菌株的生長較好，但對菲的降解在2d后便基本停滯，不利于菲的徹底降解；培養基初始ph為6時，隨著培養基中菲含量的增加， zx4菌株的生長出現底物飽和現象， tween - 80的加入對其生長呈抑制效應；而初始ph為7時， zx4菌株的生長和菲降解速率始終隨著菲含量的增加而增大， tween - 80的加入對其生長和菲降解速率都有顯著促進作用。
At 70c , dissolved time 60min , solvent ratio 125 : 50ml / g , the effect of benzene is best to separating phenanthrene of crude anthracene , phenanthrene content of crude anthracene is increased from 10 . 3 % to 41 . 7 % . at 120c , dissolved time 80min , the solvent ratio 75 : 30ml / g , the effect of dmf is best to separate carbazole from the compound of anthracene and carbazole , and in the high or common temperature when the compound is separated the solid content may be seen that anthracene content is almost . so , the common temperature is selected in the filtration of the experiment 苯在70 ’ c 、溶解時間60min 、溶劑比125 : 5oml / g ，對分離粗蔥中菲的效果最好，可以使粗蔥中菲的含量從10 . 3 %提到41 . 7 % 。 dmf在120 ’ c 、溶解時間somin 、溶劑比75 : 30ml / g時，對分離蔥和咔哇混合物中咔哇的效果最好，并且從高溫和低溫下分離后得到固體含量可以看出，在這兩個溫度下過濾得到蔥的含量差不多，因此，本實驗選擇在常溫下過濾。
In the paper the solubilities of anthracene , phenanthrene and carbazole are studied in benzene , toluene , xylene , the heavy solvent oil , clohexane , dmf , pyridine , cyclohexanone and acetone , and qualitative analysis is done by three aspects in the process of the solute dissolved the solvent : ( l ) the molecular struture and the interspace struture ; ( 2 ) reciprocity force of the intermolecule ; ( 3 ) the cohesion energy 本文考察了蒽、菲、咔唑在苯、甲苯、二甲苯、重溶劑油、環己烷、 dmf 、吡啶、環己酮和丙酮等有機溶劑中的溶解度。并從三個方面對溶劑溶解固體定性分析： ( 1 )分子結構及空間結構， ( 2 )分子之間相互作用力， ( 3 )內聚能，得到的結果與實驗得到的數據基本一致。
Abstract : a new method on extraction of phenanthrene from crude anthraceneis given , which includes azeotropic dissolution with ethylene glycol , extraction of carbon tetrachloride , treatment of sulfuric acid and ethyl alcohol recrystallization , in the end , the best process is obtained 文摘:研究了從粗蒽中提取菲的方法，即用乙二醇對原料進行共沸，以四氯化碳為溶劑并用硫酸處理，最后用無水乙醇重結晶，制定出最佳的工藝路線
A new method on extraction of phenanthrene from crude anthraceneis given , which includes azeotropic dissolution with ethylene glycol , extraction of carbon tetrachloride , treatment of sulfuric acid and ethyl alcohol recrystallization , in the end , the best process is obtained 研究了從粗蒽中提取菲的方法，即用乙二醇對原料進行共沸，以四氯化碳為溶劑并用硫酸處理，最后用無水乙醇重結晶，制定出最佳的工藝路線
Phenanthrene is one of three - aromatic pahs and distributes in environments widely , which causes diseases of human respiration system and skin , and induces mutation , aberrance and carcinogen of fish and other animals 菲為一種廣泛分布于自然環境的三環芳烴，能導致人類呼吸系統和皮膚的病變，可誘發魚類和其它生物的突變、畸變與癌變。
Through the experiment , it is known that the dissolving effect of benzene to phenanthrene in some studied organic solvent is best , moreover dmf to carbazole is best 通過實驗可知，在所考察的溶劑中苯對菲的溶解效果最好，太原理工大學碩士學位論文而dmf對咔哇的溶解效果最好。
At the same time the difference of the solubility to the isomeric compound anthracene and phenanthrene in the different solvents is discussed by the aspect of the activity coefficient 同時，還對蒽、菲同分異構體在不同溶劑中的溶解度的差異，從活度系數方面進行了探討。
Producer of chemicals derived from coal tar , located in china . products include derivatives of naphthalene , anthracene , phenanthrene , and fluorene -生產銷售乙醛酸乙二醛醇脂- 12草酸等有機化工品，包括公司簡介產品介紹等
Characterization of biodegradation of phenanthrene and other aromatic substrates by sphingomonas sp . gy2b 降解菲的特性及其對多種芳香有機物的代謝研究
Synthetic reaction mechanism of pitch resin at lower temperature by using phenanthrene and benzaldehyde 用菲和苯甲醛合成瀝青樹脂的反應機理