查询词典 ethylene

The impure carbon dioxide which can be obtained from any available source of carbon dioxide will typically contain as impurities sulfur compounds such as carbonyl sulfide, hydrogen sulfide, dimethyl sulfide, sulfur dioxide and mercaptans, hydrocarbon impurities such as aldehydes, alcohols, aromatics, propane, ethylene, and other impurities such as water, and carbon monoxide.

可由任何二氧化碳源得到的低纯度二氧化碳通常含有以下杂质：硫化合物，例如硫化羰、硫化氢、二甲硫、二氧化硫和硫醇；烃杂质，例如醛、醇、芳族化合物、丙烷、乙烯；以及其它杂质，例如水和一氧化碳。

The theoretical and experimental studies on metal-carbon-based hydrogen storage materials in recent years are reviewed in this paper, including metal-decorated carbon nanotubes,C60 and transition-metal-ethylene complexes, and so on.

随着计算材料学的发展，利用密度泛函和量子机制第一性原理研究已知材料储氢性能和寻找潜在的新型优良储氢载体已成为当前研究储氢材料的有效方法。

Wheares under buffer pH5.2, there is no strong static electricity and instead being a longer wavelength movement; SDS\'s participation just restricts the relative movement of heme\'s ethylene; a new fluorescent peak forms and the reduction of enzymatic activity is due to the packing of micella\'s formation.

强变性的阴离子表活剂SDS与带净正电荷和弱负电荷的SBP(处于pH2.6和4.2缓冲液中)有强烈的静电力作用，酶活力丧失，二级结构变化，荧光强度增加，特征Soret发生蓝移，卟啉环的π-π*共轭的分裂能增大；而当SBP带净负电荷(pH5.2)时，没有静电吸引力，Soret带发生红移；SDS的引入只是限制了血红素上乙烯取代基的运动，使其与卟啉环共轭：极性环境的变化导致产生新的荧光峰；酶活力因胶团包裹作用而有下降。

Compared the homogeneous enthalpic interaction coefficients of glycine in aqueous potassium chloride solutions with that in aqueous sodium chloride solutions and discussed different cations influence on the interaction of glycine in aqueous solutions. The dilution enthalpies of DMF in aqueous ethylene glycol, glycerol, glucose and sucrose solutions of various molalities have been determined using CSC4400 flow microcalorimetry at

本文选择N，N—二甲基甲酰胺为模型化合物，用流动量热法测定了298.15K下DMF在不同浓度的乙二醇、甘油、蔗糖和葡萄糖水溶液中的稀释焓，根据McMillan-Mayer理论，计算了其在不同溶剂组成下的同系焓相互作用系数，得到水溶液中多羟基化合物与酰胺的相互作用规律。

The final products of non-ionic Gemini surfactant can be synthesized by O-alkylating the intermediates with the ethylene oxide.

结果验明，所合成的表面活性剂中间体的结构与设计的结构基本吻合。

To isolate spermotogonia using two combinatorial enzyme three step wises digest the testicular tissues from 19 d-old-embryo after hatching,the cryopreserve effect of dimethylsulphoxide,glycerol and ethylene glycol cryoprotectants,each at(5%,10%,and 15%) concentration on the 19 d chicken embryonic SSCs was compared with fast freeze method.

采用二酶3步法获取孵化第19 d的鸡胚精原干细胞，比较在快速冷冻条件下3种冷冻保护剂(DMSO、乙二醇、甘油)在3个浓度5%、10%、15%条件下对鸡胚精原干细胞的冷冻保存效果进行研究。

It is a highly flexible rubber liner based on EPDM (Ethylene-Propylene-Diene terpolymer), a polymer used for the production of vulcanised elastomeric geomembranes.

乙烯-丙烯-二烯三元共聚物的高弹性橡胶膜，这种聚合体曾用于生产硫化弹性橡胶膜。

The special PP material for sound box is developed with polyolefin elastomer and ethylene/propylene/diene copolymer as the tougheners, polypropylene grafted with maleic anhydride as the compatibilizer and talcum as the inorganic fillers.

以聚烯烃弹性体和共聚物为增韧剂，马来酸酐接枝聚丙烯为增容剂，滑石粉为无机填科研制音箱用聚丙烯专用料。

Latex collected from rubber trees of Clone Reyan 88-13 at the first tapping prior to ethrel stimulation and at different tappings after ethrel stimulation were determined in terms of ethylene rate by using capillary gas chromatography.

探讨采用毛细管柱气相色谱法测定橡胶树胶乳中乙烯释放量的方法，并初步测定了首次割胶的胶乳中乙烯释放量和乙烯刺激割胶不同割次的乙烯释放量。

Acetone, cyclohexanone, formaldehyde and ethylene diamine were adopted to synthetise HLZ corrosion inhibitor by means of Mannich reaction.Then LZ-620 salts corrosion inhibitor was synthetised on HLZ condensating chloroacetic acid.

针对盐类腐蚀采用丙酮、环酮A、甲醛、乙二胺通过曼尼希反应生成缓蚀剂后再与氯乙酸缩合生成盐类缓蚀剂(LZ-620)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。