查询词典 ethylene

Dioxane is a byproduct of a petrochemical process called ethyoxylation, which involves using ethylene oxide to process other chemicals in order to make them less harsh.

1，4二氧六环的副产品是一个石化过程被称为ethyoxylation ，其中包括利用环氧乙烷，其他化学品，以使它们显得温和。

Dioxane is a byproduct of a chemical processing technique called ethoxylation in which cosmetic ingredients are processed with ethylene oxide.

在受检的48种洗浴用品当中，有 67%被检出含有 1，4-二噁烷，后者是许多化妆品原料加工过程中产生的副产品。

Perhaps this is relevant to emodin and diphenyl ethylene glucoside which are the main ingredients included in the herb.

何首乌具有延年益寿，抗衰老作用，可能与其所含的主要成分大黄素、二苯乙烯苷有关。

Objective:To investigate the effects of Emodin and diphenyl ethylene glucoside on antioxidation of Radix Polygoni Multiflori at molecular lever.

目的：从分子水平研究何首乌中主要成分大黄素、二苯乙烯苷的抗氧化作用。

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 results show that the distillate temperature of DLLA is lowed by the addition of diluent ethylene glycol, and the carbonization phenomenon can be avoided, which increases the yield of DLLA from 36.8% to 51.3%.

研究结果表明，在反应体系中加入乙二醇作为稀释剂，能降低DLLA的馏出温度，避免了DLLA在蒸馏过程中产生炭化现象，并使DLLA的平均产率由36.8%提高至51.3%。

The affections on the yield of DLLA caused by catalyst, temperature and time etc. were studied. By using ethylene glycol as diluent, the distillate temperature of DLLA was lowed and the carbonization phenomenon could be avoided, which caused the yield of DLLA increasing from 36.8% to 51.3%. The molecular weight of PDLLA prepared by this method could reach 184,000. DLLA and PDLLA was characterized and analyzed by DSC, XRD and IR.The key of direct method to synthesize PDLLA is the exclusion of H2O from reaction system.

丙交酯开环聚合制备PDLLA的关键在于中间体D，L-丙交酯的制备，研究了催化剂、反应温度、反应时间等因素对DLLA产率的影响，通过在反应体系中加入稀释剂乙二醇，DLLA的馏出温度明显降低，避免了DLLA在蒸馏过程中产生碳化现象，并使DLLA的平均产率由36.8％提高至51.3％，制备的PDLLA分子量最大值达18.4万。

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。

There were remarkable negative correlation between either density or induction rate of celery embryoid and the releasing levels of ethylene,respectively.

在Co2+作用下芹菜胚状体发生率和密度均与乙烯累积释放量呈显著的负相关。

The shorter internodes and out-growth of anxillary buds found in antisense LeETR2 and leaf epinasty observed in antisense LeETRl plants are phenotypes consistent with the negative regulation model of ethylene.

5植株衰老和叶片脱落延迟，花瓣脱落也明显的延迟，在转反义LeETR1基因番茄的果实成熟特性被明显改变，表现在乙烯释放高峰延迟，果实颜色出现变异，以及和成熟相关的酶活性的改变，然而，转反义LeETR2基因的果实的成熟特性与对照相比无明显差别。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新