查询词典 ethenyl

The invention relates to a mixed additive used in lithium secondary battery electrolyte, which is characterized in that: its components comprises that biphenyl at 0.5-95.4%, phenylcyclohexyl at 1.1-93.8%, vinylene carbonate at 0.4-93.2%, tertiary carbon alkyl benzene at 0.5-96.5%; and ethenyl sulfonyl benzene at

本发明公开了一种锂离子二次电池电解液用混合添加剂，其特征在于：组分与重量％分别是：联苯类0.5％～95.4％；环己基苯类1.1％～93.8％；碳酸亚乙烯酯0.4％～93.2％；叔碳烷基苯0.5％～96.5％；乙烯基硫酰苯0.5％～95.8％。

Two novel A-it-A' type benzothiazole-based derivatives with benzothiazolyl, phenyl-acetyl or pyridine cation groups as π electron acceptor, diethenylphenyl as π conjugated bridge: 4-(2-benzothiazolyl) ethenylchalcone (1) and 4-{4-[2-(benzothiazole-2-yl) ethenyl] styryl}-N-methylpyridinium iodide (2) were synthesized.

以苯并噻唑、苯乙酰基和吡啶阳离子为电子受体，二乙烯基苯为共扼桥，合成了两个新的A-π-A'型苯并噻唑衍生物：4-（2-苯并噻唑）－乙烯基查尔酮(1)和4-｛4-［2-乙烯基］苯乙烯基｝－N-甲基吡啶碘盐(2)。

Two novel A-π-A′ type benzothiazole-based derivatives with benzothiazolyl,phenyl-acetyl or pyridine cation groups as π electron acceptor,diethenylphenyl as π conjugated bridge: 4-(2-benzothiazolyl)ethenylchalcone(1) and 4-{4-[2-(benzothiazole-2-yl)ethenyl]styryl}-N-methylpyridinium iodide(2) were synthesized.

以苯并噻唑、苯乙酰基和吡啶阳离子为电子受体，二乙烯基苯为共轭桥，合成了两个新的A-π-A′型苯并噻唑衍生物：4-(2-苯并噻唑)-乙烯基查尔酮(1)和4-{4-[2-乙烯基]苯乙烯基}-N-甲基吡啶碘盐(2)。

Thirdly, The preparation of 3-aryl-5-substituted-ethenyl isoxazoles and l-isoxazolyl-2-isoxazolinyl substituted-ethenes was developed through 1, 3-dipolar cycloaddition of nitrile oxides,α-alkylation reaction and another 1, 3-dipolar cycloaddition of nitrile oxides based on polystyrene-supported propargyl selenide.

三、从聚苯乙烯负载的炔丙基硒醚出发，经过腈氧化物的1，3-偶极环加成反应、α-烷基化反应和腈氧化物的1，3-偶极环加成反应固相分别合成了3-芳基5-取代--乙烯基异噁唑和1—异噁唑—2—异噁唑啉取代的-乙烯。

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。