中文翻译与英英解释
例句与用法 | 1. | Synthetic reaction mechanism of pitch resin at lower temperature by using phenanthrene and benzaldehyde
用菲和苯甲醛合成沥青树脂的反应机理
| | 2. | Characterization of biodegradation of phenanthrene and other aromatic substrates by sphingomonas sp . gy2b
降解菲的特性及其对多种芳香有机物的代谢研究
| | 3. | Producer of chemicals derived from coal tar , located in china . products include derivatives of naphthalene , anthracene , phenanthrene , and fluorene
-生产销售乙醛酸乙二醛醇脂- 12草酸等有机化工品，包括公司简介产品介绍等
| | 4. | 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
同时，还对蒽、菲同分异构体在不同溶剂中的溶解度的差异，从活度系数方面进行了探讨。
| | 5. | 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
通过实验可知，在所考察的溶剂中苯对菲的溶解效果最好，太原理工大学硕士学位论文而dmf对咔哇的溶解效果最好。
| | 6. | 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
菲为一种广泛分布于自然环境的三环芳烃，能导致人类呼吸系统和皮肤的病变，可诱发鱼类和其它生物的突变、畸变与癌变。
| | 7. | 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
研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线
| | 8. | 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:研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线
| | 9. | 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、重溶剂油、环己烷、 dmf 、吡啶、环己酮和丙酮等有机溶剂中的溶解度。并从三个方面对溶剂溶解固体定性分析： ( 1 )分子结构及空间结构， ( 2 )分子之间相互作用力， ( 3 )内聚能，得到的结果与实验得到的数据基本一致。
| | 10. | 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 、溶解时间60min 、溶剂比125 : 5oml / g ，对分离粗葱中菲的效果最好，可以使粗葱中菲的含量从10 . 3 %提到41 . 7 % 。 dmf在120 ’ c 、溶解时间somin 、溶剂比75 : 30ml / g时，对分离葱和咔哇混合物中咔哇的效果最好，并且从高温和低温下分离后得到固体含量可以看出，在这两个温度下过滤得到葱的含量差不多，因此，本实验选择在常温下过滤。
|
|
您当前位置：