乙烯的

ACC Synthase is one of the rate-limiting enzymes of ethylene biosynthesis in plant. The ACC Synthase gene silencing can down-regulate the product of endogeny ethylene in plant.

ACC合酶是植物乙烯生物合成途径中一个重要的限速酶，沉默ACC合酶基因的表达能减少植物性内源性乙烯的产生。

ACC Synthase is one of the rate-limiting enzymes in ethylene biosynthesis. The silencing of ACC Synthase gene results in the decreased production of endogeny ethylene.

ACC合酶是植物乙烯生物合成途径中一个重要的限速酶，沉默ACC合酶基因的表达能减少植物性内源性乙烯的产生。

These solvent vapor degreasers meet recentEPA and NESHAP guidelines for use with trichloroethylene and perchloroethylene.

这些溶剂汽油去污设备的达到了最近新出台的EPA和NESHAP对三氯乙烯和四氯乙烯的使用准则。

The results showed that gradients of radial velocity and temperature were larger due to viscous sublayer near the wall of reactor tube.

在管式炉裂解制乙烯的过程中，裂解原料在炉管内发生复杂的化学反应生成乙烯为主的轻烃和一部分芳香烃。

The measurement shows that 310.8 nm is the suitable wavelength for detection of trichloroethylene and 322.5 nm is the suitable wavelength for detection of tetrachloroethylene in this wavelength range.

研究表明，该波长范围内三氯乙烯的最佳检测波长为310.8 nm，四氯乙烯的最佳检测波长为322.5 nm。

Poly{[2-(4-biphenylamino)phenyl]phenylenevinylene} was prep-ared with 4-nitroanline which was coupled with p-xylene,throughreduction、idionization、Ullmann reaction、bromization、condensepolymerizationto get the final product.

本文提出了两条合成聚(2-芳基苯撑乙烯)的新路线，即聚{ 2-[4-苯基]苯撑乙烯}是以对硝基苯胺为原料，其与对二甲苯经改良的Gomberg-Bachmann反应偶联、再通过还原、碘化、Ullmann反应、溴化、缩聚反应得到。

Study of PES-PAN blending membrane ;2. The blending membrane s of perfluorinated sulfonic resin with polyvinylidene fluoride were prepared by the method of solution casting.

为了降低质子交换膜的成本，选用聚偏氟乙烯和全氟磺酸树脂为原料，采用溶液-浇铸法制备了全氟磺酸树脂/聚偏氟乙烯的共混膜。

Alloys for Ethylene Production Furnacesindustry, due to the decoking necessary to maintain ethylene furnace tubes.

由于要保护乙烯炉管所必须进行的脱硫，在化工行业乙烯的生产是能源密集型其中之一。

MCP treatment had significantly decreased the wound ethylene production in Starking apple, which even lower than the intact apple.

1-MCP处理对红星果实伤乙烯的生成具有明显的抑制作用，抑制后果实乙烯生成量比没有受伤的苹果果实还要低。

TiO〓/K-M supported Ag/SiO〓 composite ceramic membrane tubes have been prepared and used as a membrane reactor for selective separation of C〓H〓 during the catalytic reaction process of CO〓 partially oxidating C〓H〓. By removing C〓H〓 produced in the catalytic reaction, thermodynamic balance of the reaction is upset and some side reactions from C〓H〓 are avoided, thus the conversion rate of C〓H〓 and the selectivity to C〓H〓 are effectively increased.

本研究设计、制备了硅藻土—莫来石陶瓷管负载的Ag/SiO〓复合膜，并将其应用于二氧化碳部分氧化乙烷催化反应过程中产物乙烯的选择性分离，有效地提高了催化反应的反应物乙烷转化率和产物乙烯选择性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。