查询词典 ethylene

The electrolyte, which is different from the conventional electrolyte of the ethylene-boric acid system, consists of ethylene, dimethylformamide, ammonium hexandioic and polyhydric alcohol but water.

它是以乙二醇和二甲基甲酰胺为主溶剂，以己二酸铵为溶质，以多元醇为热稳定剂的非水系工作电解液。本文对新型工作电解液和一般工作电解液进行了比较。

The result showed that the thermal decomposition temperature of chlorinated paraffin reached 133℃ by adding 0.3% composite stabilizer in which the weight percentages of ethylene glycol diglycidyl ether, methyl stannic, triphenyl phosphate, exoxidized soybean oil were 72%, 3%, 10%, 15%, respectively. It is 15℃ more than that of using pure ethylene glycol diglycidyl ether.

结果表明：当复合稳定剂中乙二醇二缩水甘油醚、甲基锡、亚磷酸三苯酯、环氧大豆油的质量分数分别为72%，3%，10%，15%，复合稳定剂的添加量为氯化石蜡的0.3%时，氯化石蜡的热分解温度为133℃，比单独使用乙二醇二缩水甘油醚提高了15℃，热稳定效果较好。

Using spherical MgCl_2-supported superactive Ziegler-Nattacatalyst, polypropylene/ethylene-propylene copolymerin-reactor alloy can be prepared by two-stage polymerization process—a sequential homopolymerization of propylene followed by a downstream ethylene/propylene copolymerization.

用球形MgCl_2负载型高效Ziegler-Natta催化剂，经丙烯均聚—乙烯/丙烯气相共聚序贯反应工艺制备的聚丙烯/乙丙共聚物合金具有优良的抗冲击性能，是聚丙烯的重要高性能化改性品种，已实现大批量生产。

The results showed that 22.5μL/L of clove leaf oil had the best preservation effect on peach. After 35 days of stock, the sound fruit rate was 94%, 46.9% higher than compared group. The rotten index and the browning index were 94.1% and 85.2% lower than the control, respectivly, and the treatment could remarkablely reduce the respiration rate and ethylene release, and postponed ethylene release peak and respiration peak 5 and 10d, respectively in comparison with CK, it also delayed the drop of firmness and contents of titrable acids of the peach. When stored for 35d, firmness of control group and 22.5μL/L of clove leaf oil were decreased 60% and 34% compared with initial storage, and the activities of SOD, CAT and POD were enhanced, but the contents of SSC had no obvious difference with control.

结果表明，与对照相比，22.5μL/L丁香叶油处理对桃果实的防腐保鲜效果最好，贮藏35d时好果率为94%，比对照提高了46.9%，腐烂指数和褐变指数分别比对照低94.1%和85.2%；丁香叶油处理可以有效降低桃果实的呼吸强度和乙烯释放量，呼吸强度高峰和乙烯释放量高峰分别推迟5和10d，延缓了果实硬度和可滴定酸含量下降的速度；贮藏35d时对照和22.5μL/L丁香叶油处理果实硬度分别比贮藏初期降低了60%和34%；丁香叶油处理提高了超氧化物歧化酶、过氧化氢酶、过氧化物酶3种膜脂过氧化物酶的活性，但可溶性固形物含量与对照相比无明显差异。

Waste oil category: Waste oil, waste hydraulic oil, waste oil, waste oil injection, waste kerosene, waste of white mineral oil, white waste oil, waste oil sparks, the repeal of toluene, waste cutting oil, gear oil, lubricants, batteries oil, spindle oil, zorra, oil, turpentine oil, solvent oil, gear oil, oil rails; waste chemical categories: one, the repeal of toluene, xylene waste, spent 2 pure benzene, acetone waste, waste Ding ketone, cyclohexanone 3 waste, waste dichloromethane, dichloroethane waste, waste Dichloropropane 4, solvent categories: soluble oil 6 #, 120 # dissolving agents, dissolving agents 200 # 5, trichloro ethylene, dichloromethane, trichloroethane; tetrachlorethylene, trichloromethane 6, the repeal of methanol, ethanol, waste, waste alcohol, isopropyl alcohol waste 7, the repeal of ethylene glycol, diethylene glycol waste, spent three 8 glycol, waste butyl acetate, ethyl acetate wastewater, waste acetate 9, the repeal of ethyl ether, acetonitrile waste, waste petroleum ether 10, cleaning categories: cleaning agent, washing machine water, days that water; wash board water,×oil wastewater liquid 11, the supply of tires category: special supply of fuel oil, non-standard oil, burner oil, waste oil and other refined crude oil.

废油类：废机油，废液压油，废柴油，废注塑机油，废煤油，废白矿油，废白电油，废火花机油，废甲苯，废切削油，齿轮油，润滑油，废电池机油，锭子油，索拉油，松节油，溶剂油，齿轮油，导轨油等；废化工类：1、废甲苯、废二甲苯、废纯苯2、废丙酮、废丁酮、废环已酮3、废二氯甲烷、废二氯乙烷、废二氯丙烷4、溶剂类： 6#溶油剂， 120#溶油剂， 200#溶油剂5、三氯乙烯，二氯甲烷，三氯乙烷；四氯乙烯，三氯甲烷6、废甲醇、废乙醇、废丁醇、废异丙醇7、废乙二醇、废二甘醇、废三甘醇8、废醋酸丁酯、废醋酸乙酯、废醋酸甲酯9、废乙醚、废乙腈、废石油醚10、清洗类：清洗剂，洗机水，天那水；洗板水，去渍油等废液废水11、废轮胎类供应：特价供应燃料油，非标油，烧火油，废油提练的原油等。

The synthesis of the unbridged metallocene (2, 4-Me〓Ind)〓ZrCl〓, which is not found in reference. Polymerization of ethylene or propylene with the metallocene has high activity. The resulted ethylene/1-hexene copolymer characteristic of uniform comonomer distribution. The catalyst possess commercial value

合成了未见文献报道的非桥联茂金属（2，4-Me〓Ind）〓ZrCl〓，用这种茂金属催化乙烯或丙烯聚合均达到了很高的催化效率，所得的乙烯/1-己烯共聚物表现出共单体分布高度无序的特点，具有工业应用前景

Ethylene oxide resistance. Figure 4 compares the ethylene oxide resistance of unoccluded versus occluded spores of B. subtilis var. niger.

环氧乙烷耐受性：图4比较了封闭和未封闭的枯草杆菌黑色变种芽胞对环氧乙烷的耐受性。

The formation mechanism and the role of the solvents played were explored. Ethylene glycol was found to serve as the reducing agent while acetylacetone had effects on maintaining equilibrium conditions, suppressing the coalesces, enhancing the reducing ability of ethylene glycol, and directing the growth of multiply twinned palladium particles.

通过对产物形成的机理及溶剂所起的作用进行深入研究，发现乙二醇是还原剂，乙酰丙酮则具有维持平衡条件、减少团聚、增强乙二醇的还原能力及诱导钯多重孪晶的生长等作用。

Furthermore,the adsorption of acetylene on the Ni(111)surface is investigatedby DV-Xα method,as well as its migration pathway from the aligned bridgesite,the favorite adsorption site for ethylene,to the cross-bridge site.Afterstudying several reaction pathways of C2H2 on Ni(111),we find that acetylene,as the product of dehydrogenated ethylene,will migrate from the alignedbridge site to the cross-bridge site with a very small energy barrier,0.02eV.

给出了乙炔在各个吸附位的吸附结构，并在假定乙烯在脱氢前没有迁移的基础上，对各种可能的反应途径作了模拟研究，发现乙炔在平行桥位的吸附结构不稳定，通过1.24的平移和30度的旋转的耦合，迁移到垂直桥位，迁移过程中只有0.02eV的势垒。

Techniques:Ethylene glycol is the most important downstream products of ethylene. Although the domestic glycol production has been increasing, demand still overweighs supply. Every year there are plenty of imports to satisfy the great domestic market demand.

工艺技术简述：乙二醇是乙烯最重要的下游产品，虽然国内乙二醇产量虽呈逐年递增趋势，但仍然长期处于供不应求状态，每年都有大量的进口，国内市场基本依靠进口满足需求，市场供求矛盾较大。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。