Propyl glycidyl ether ( PGE ) was obtained from propyl alcohol and epichlorohydrin by phase - transfer catalysis.以环氧氯丙烷和正丙醇为原料,通过相转移催化法合成了正丙基缩水甘油醚.The FBC ( fluorous biphase catalysis ) is a new nonaqueous immobilization...
In specific acid catalysis, the undissociated acids do not contribute.在特殊的酸催化中, 不离解的酸不起作用.The corresponding reaction of acetaldehyde is subject to general base catalysis.乙醛相应的反应服从广义的碱催化.Catalysis has increased the rate o...
Conclusion Over expression of PAI 1 gene leads to mesangial ECM accumulation.结论 首次建立了系膜细胞PAI1 的过度表达体系,证实细胞过度表达PAI1可以直接导致ECM的积聚.This method makes it possible to integrate ESM with ECM.此方案能将ESM与ECM集成 一体.Conclusion: TGF - �...
Whiteness is emblematic of purity.白色是纯洁的象征。Whiteness, roundness, and bravery are abstractions."白" 、 "圆"和"勇敢"都是抽象概念.Her scarlet lipstick emphasized the whiteness of her teeth.她鲜红色的口红更衬出了她牙齿的洁白。The original burnt whiteness...
在有较大开口的情形中,还需选购背衬材料.A backing material is optionaland only needed for large openings.酚醛背衬阀座: 不可拆解, 抗拉伸,抗撞击.现场可更换.Phenolic Backed Seat: Non - collapsible, stretch resistant, blow out proof, field replaceable.剥离背衬膜.Peel of...
Objective To determine total flavonoid content in Eugenia caryophyllata Thunb.目的研究可见光及紫外分光光度法测定丁香总黄酮含量的方法.Aim To determine the concentrations of eugenol in eugenia oil � � cyclodextrin.目的:测定丁香油β环糊精中丁香酚的含量.Objective : To ...
Tu Hsueh - shih took this attitude of his nephew as a downright insult and crimsoned violently.这在杜学诗看来,简直是对于他老叔的侮辱. 他满脸通红了!He reacted violently only under provocation .只因为被激怒,他才暴力相向。One of our strikers was violently char...
He looked up with a quizzical look on his face.他脸上带着困惑的神情抬头往上看.He gave Robin a mildly quizzical glance.他有些惊讶地瞥了罗宾一眼。Spruance and Pug Henry exchanged quizzical looks near the end.快结束时,斯普鲁恩斯和帕格·亨利交换了一下探询的眼色.a quizzical smi...