乙烯

The results showed that calcium nitrate treatment apparently slowed down the consenescence rate, made the flesh firmness higher than the control, elevated the activities of POD, SOD and CAT, retarded the ethylene production, reduced the soluble protein content, and declined the increased speed of electrical conductivity and LOX activity.

结果表明：硝酸钙具有明显延缓甜瓜果实衰老的作用，使果肉硬度显著高于对照，并提高过氧化物酶、超氧化物歧化酶和过氧化氢酶活性，同时降低果肉乙烯释放量、可溶性蛋白含量、外渗电导率的升高速度和脂氧合酶活性的作用。

Based on detailedly analyzing the application and development of plastic heat exchangers at home and abroad, one approach was advanced that by substituting plastic heat exchanger made of thin wall and canaliculus PTFE plastic tube for the metal heat exchanger of traditional lithium bromide absorption cooler.

本文在对国内外塑料换热器的应用、发展进行详尽分析的基础上，提出采用薄壁小管径聚四氟乙烯塑料管制成的塑料换热器代替传统的溴化锂吸收式制冷机中的金属换热器，制作一台塑料管溴化锂吸收式制冷机及其实验系统的课题。

Carbinol, ethylene, propylene, and benzene are called one of four basic organic chemical raw materials.

甲醇、乙烯、丙烯和苯被称为四大基本有机化工原料之一。

1,1-bis-2-nitroethene was prepared by reacting nitromethane and carbon bisulfide.

摘 要：研究了以硝基甲烷和二硫化碳为原料，合成1，1-二甲硫基-2-硝基乙烯。

It is noted to that this binuclear nickel complex is able to catalyze ethylene polymerization as single-component catalyst.

值得注意的是，该化合物可以作为单组份催化剂催化乙烯聚合。

The research is to discuss the effect of the different storage temperature, concentration of sucrose and application of ethylene on the senescence of the cattleya cut flower. The senescence symptom appeared in the cattleya cut flower in the vase at 25℃at 4th day, complete senescence happened at 5th day and lost the ornamental value .

本研究探讨不同贮藏温度、蔗糖浓度及外加乙烯对嘉德丽雅兰切花花朵老化之影响，嘉德丽雅兰切花於25℃下瓶插第4天花朵已开始出现老化症状，第5天花朵已完全老化且失去观赏价值。

The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.

合成方法包括：将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中，升温至48-52℃，于真空度0.02～0.05MPa反应4.5小时，反应完毕降温，用10％氢氧化钠溶液调pH＝11.0-11.4，抽滤，滤液降温至0～2℃，结晶12小时，离心甩滤，用纯化水漂洗滤饼，得雷尼替丁碱湿品；将雷尼替丁碱溶于乙醇中与盐酸反应，制备得到盐酸雷尼替丁，产品符合欧洲药典标准。

The whole industrial chain and branch chains of circular economy have been planned for Zhenhai chemical park. The branch chains consist of ethane chain, C_1 chain, HC1 chain, H_2chain, NH3 chain and S chain. The concept of equivalent pollutant emission, E, has beenproposed and a reference line based on equivalent pollutant emission has been given and applied to the primary appraisal for Zhenhai chemical park. The whole chain and branch chemical industry chains have been also planned for ZJC group company, which include the industrial chain containing fluorine, the industrial chain of basic chemicals and the industrial chain of petroleum chemical industry.

本文对镇海化学工业区的工业链构建进行了可行性分析；完成了园区工业链的整体规划设计，和包括乙烯工业链、碳一工业链、HCl工业链、H_2工业链、NH_3工业链、S元素工业链在内的6条分链的设计；提出了污染排放当量E_t~′的概念，并将其应用到园区工业链招商的初评，制定了入园参考线；本文在对ZJC集团公司发展现状分析的基础上，根据其物质流和能量流的分析，进行了工业链的总体设计，并对氟化工产业、基础化工产业(包括以合成氨为代表的煤化工、以氯碱生产为代表的盐化工以及硫酸、电石等产业)和石油精细化工产业完成了分链设计，进行了分链的分析，提出了建议。

The plans of the industrial chains for Zhenhai chemical park which represents the mode of individual entity symbiosis in China and for ZJC group company which represents the mode of comprehensive entity symbiosis in China have been studied in this dissertation.The whole industrial chain and branch chains of circular economy have been planned for Zhenhai chemical park. The branch chains consist of ethane chain, C_1 chain, HC1 chain, H_2chain, NH3 chain and S chain. The concept of equivalent pollutant emission, E?

本文对镇海化学工业区的工业链构建进行了可行性分析；完成了园区工业链的整体规划设计，和包括乙烯工业链、碳一工业链、HCl工业链、H_2工业链、NH_3工业链、S元素工业链在内的6条分链的设计；提出了污染排放当量E_t′的概念，并将其应用到园区工业链招商的初评，制定了入园参考线；本文在对ZJC集团公司发展现状分析的基础上，根据其物质流和能量流的分析，进行了工业链的总体设计，并对氟化工产业、基础化工产业(包括以合成氨为代表的煤化工、以氯碱生产为代表的盐化工以及硫酸、电石等产业)和石油精细化工产业完成了分链设计，进行了分链的分析，提出了建议。

Transfer of an amino group from one chemical compound to another.

一种热塑性塑料，由含乙烯基的化合物聚合而成。

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。