丙烷
- 与 丙烷 相关的网络例句 [注：此内容来源于网络，仅供参考]
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With the increase in the production of natural gas and ethane, propane recovery rate of increase in the proportion of which are increasing.
随着天然气产量的增加和乙烷、丙烷回收率的提高，所占比例正在逐步增加。
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With the increase in the production of natural gas and ethane propane recovery rate of increase in the proportion of which are increasing.
随着天然气产量的增加和乙烷、丙烷回收率的进步，所占比例正在逐步增加。
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72 As more and more ethane and propane are extracted form natural gas, the control of the But or heating content of gas becomes mere important.
答案：随着越来越多的乙烷和丙烷从天然气中分离出来，对天然气的加热温度的控制也越来越重要。
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Etherification of propylene oxide with methanol using MAF solid base catalyst had been investigated.
研究了甲醇与环氧丙烷在固体碱催化剂MAF存在下非均相合成丙二醇甲醚的过程。
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Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。
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It was found that the catalytic activities of HZSM-5 sample (ZS540.2) steaming at 540℃ latm for 2hr to condensation reaction and etherization of propylene oxide were enhanced.
发现了适度水热处理HZSM-5应用于缩醛和环氧丙烷醚化等-系列反应后得到的催化活性增强现象。
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On the base of molecular structure design, the mechanism and technique of the synthesis of 2-(acryloyloxy ethyl trimethyl-ammonium chloride/2-acrylamido-2methylpropane sulfonic acid/acrylamide (AETMAC/AMPS/AM) amphoteric terpolymers by radical co-polymerization in aqueous solution was studied systematically.
依据分子结构设计理论，将2—丙烯酰氧乙基—三甲基氯化铵/2—丙烯酰胺基—2—甲基丙烷磺酸/丙烯酰胺(AETMAC/AMPS/AM)三种单体进行水溶液自由基共聚，合成了AP系列两性离子聚合物。
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Coking and deactivation of zeolite catalysts in the synthesis of propylene glycol ethyl ether from propylene oxide and ethanol at lower reaction temperature were studied in this thesis.
本文选择反应物与生成物都含有氧原子的自环氧丙烷和乙醇合成丙二醇乙醚作为典型反应，研究较低温度下在沸石催化剂上反应过程中的的积炭失活规律。
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From 3-chloropropene bycondensation with sodium ethylate in ethanol to form 3-ethoxypropene followed by anti-Markovnikov addition with HBr inthe presence of benzoyl peroxide.
3-氯丙烯与乙醇钠在乙醇中回流制得3-乙氧基丙烯，继而在过氧苯甲酰存在下，与溴化氢经反马氏加成制得1-溴-3-乙氧基丙烷，总收率89。
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The progress in the catalytic ring-opening polymerization of ethylene oxide and propylene oxide is reviewed in this paper.
环氧乙烷和环氧丙烷的开环聚合产物在表面活性剂工业和聚氨酯工业得到了极为广泛的应用。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua ：豪华度假村，冲浪和潜水，沙滩，水晶般晶莹剔透的水，网络冲浪。