ethylene n. 1. 乙烯a gas which is present in coal, crude oil , and natural gas 例句 释义: 全部,乙烯,乙撑,聚乙烯,乙烯基 更多例句筛选 1. Ammonium polyphosphate(APP)andexpandablegraphite(EG)have been usedtoimproveflame retardancyofpoly(ethylene-co-vinylacetate)(EVA). ...
Apples , for example, releaseethylenegas, a plant hormone. 例如苹果, 它会释放乙烯, 一种植物激素. 期刊摘选 The essay introduce the synthesis and function test about the terpene maleic anhydrideethyleneglycol polyester. 文章介绍了萜烯马来酐乙二醇聚氨酯的制备及性能测试. ...
最早报道的植物对乙烯的反应是“三重反应”（triple response of ethylene），该反应的作用有：①抑制茎的伸长生长；②促进茎和根的增粗；③促进茎的横向增长。用乙烯处理黄化幼苗茎可使茎加粗和叶柄偏上生长。乙烯可促进植物的果实、细胞扩大，籽粒成熟。由于乙烯可以促进RNA和蛋白质的合成，并可在高等植物体内使...
乙二醇（ethylene glycol）又名甘醇、1,2-亚乙基二醇，简称EG。化学式为(CH₂OH)₂，是最简单的二元醇。乙二醇是无色无臭、有甜味液体，对动物有低毒性，乙二醇能与水、丙酮互溶，但在醚类中溶解度较小。用作溶剂、防冻剂以及合成涤纶的原料。乙二醇的高聚物聚乙二醇（PEG）是一种相转移催化剂，也用于细胞...
Ethylene is a growth hormone in plants. 乙烯是植物中一种生长荷尔蒙。 The concentration of ethylene is on the high side. 乙烯浓度偏高。 The plant can produce up to 130 tons of ethylene each month. 这家工厂每月最高能生产一百三十吨的乙烯。
化学名 ETHYLENE 分子式 C2H4 CAS号 74-85-1 结构式图片 EINECS号 200-815-3 NCIT码 C76752 SMILES C=C INCHIKEY VGGSQFUCUMXWEO-UHFFFAOYSA-N 别名 CARBONEUM HYDROGENISATUM;ETHENE;CARBONEUM HYDROGENISATUM [HPUS];ETHYLENE [MI];ETHYLENE [II];ETHYLENE [HSDB];ETHYLENE [WHO-DD] 中...
The meaning of ETHYLENE is a colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas, can be produced by pyrolysis of petroleum hydrocarbons, and occurs in plants functioning especially as a natural growth regulator that promot
Advertisement adjective(1) noun(1) Advertisement AmericanBritishScientific [eth-uh-leen] Phonetic (Standard)IPA adjective containing theethylene group. noun Also calledethene,olefiant gas.a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of theethylene ser...
中文名称:乙英文名称:Ethylene CAS:74-85-1产品类别:特殊气体 ( Specialty Gases ) 产品编号:C2H4产品等级:电子级 含量:99.999月产量:0 乙烯- ( C2H4 ) 描述 乙烯是一种无色,易燃,有微弱的臭气。 规格 纯度, % 99.5 99.99 99.995 99.999 氧气