乙烯

A catalyst for preparing propylene by dismutation reaction of the gas mixture containing ethylene and butylene is composed of the active components (5-30%) including tungsten oxide, molybdenum oxide and rhenium oxide and the carrier (more than 50 wt.%) which may be molecular sieve of Silicate-2,H, beta, SAPO, ZSM, or MCM type.

一种以含乙烯和丁烯的混合气歧化制丙烯催化剂，组成为ABC/D，活性组份总的重量担载量为5－30％；其中A为钨的氧化物，B为钼的氧化物；C为铼的氧化物；D为混合物载体并且主要为分子筛(重量含量大于等于50％)，包括Silicate－2，Y，Hβ，SAPO系列，ZSM系列，和MCM系列分子筛。

The characterization results show the compatibility between continuous phase and dispersed phase of the alloys is good.

首次对国产球型催化剂用于乙烯气相均聚过程的动力学和颗粒形成过程进行了详细的研究，发现了特殊的聚合动力学现象。

It showed that dissipative holographic solitons can exist in a two-beam dissipative system in a proper condition.

实验表明，在适当条件下，耗散全息光孤子可以存在于不加外电场的以3-甲酰基-9-乙烯基咔唑为基础的有机光折变材料中。

The reaction of fluoroalkyl iodides with ethyl vinyl ether and amines in the presence of sodium dithionite was studied.

研究了在保险粉存在下，氟烷基碘(1)与乙烯基乙醚和伯胺或仲胺(2)的反应。

Fter preparing porous thin film by doctor blade, carbon counter electrode was prepared by sintering porous thin film at low-temperature.

bstract 以廉价的炭黑掺杂石墨粉，氯化聚乙酸乙烯醋为胶黏剂制成导电浆料，在柔性基底上用丝网印刷技术制备薄膜，低温热处理后即得碳对电极。

ePTFE membrane is biocompatible and can close the primary wound over a barrier which stops the downgrowth of junctional epithelium at the early stage of periodontal tissue repair after operation.

国产膨体聚四氟乙烯膜有较好的生物相容性，能较好的封闭手术创口，早期能抑制结合上皮根向移动，适于临床应用。

The medium duty trimmers cut through aluminum, cardboard, drafting film, illustration board, laminating film, leather, mat board, newsprint, paper, photo film, polyester film, tissue, tracing paper, vellum, and vinyl.

中期削减关税微调器通过铝，纸板，起草电影，说明板，复合薄膜，皮革，垫子板，新闻纸，纸张，胶卷，聚酯薄膜，组织，描图纸，涡卷形，以及乙烯。

The use of the dry-cleaning detergent is more than PCE, gasoline, is also harmful to human health.

干洗使用的洗涤剂多是四氯乙烯、汽油等，对人体健康亦有害。

The risk assessment for epoxyethane /glycol plant of Maoming Petrochemical Ethylene Industrial Comˉpany was carried out by utilized the risk assessment proceˉdure of risk index method of fire and explosion of Dow Chemical Company,and improvement measures are sugˉgested.

利用道化学公司火灾爆炸危险指数法安全风险评价程序对茂名石化乙烯公司环氧乙烷/乙二醇装置进行了安全评价，并提出了改进措施。

Confocal Raman technique was used to investigate the structure changes of the ZnSO4droplets deposited on Teflon substrate in the efflorescence process at the molecular level.

通过共聚焦拉曼原位光谱技术在分子水平上研究了沉积在聚四氟乙烯基底上的ZnSO4微液滴的风化过程。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。