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- methyl substituted hydrazine 甲代肼
- Ab initio calculation with STO-3G basis sets and DFP geometry optimization method were used to study conformation stability of pentadienyl anion and its methyl substituted derivatives. 用STO-3G基组的从头计算和DFP梯度几何优化方法对戊二烯负离子(C_5H_7~-)及其甲基取代衍生物进行了骨架优化.
- methyl substituted cucurbit[n]uril 甲基取代瓜环
- methyl substituted poly (aryl ether ketone sulfone) 甲基取代的聚芳醚酮砜
- Keywords 4-nitrobenzoic chloride;substituted hydrazine;4-nitro benzoyl acylhydrazine;synthesis;dehydrogenation; 对硝基苯甲酰氯;取代苯肼;对硝基苯甲酰芳肼;合成;氧化脱氢;
- Studies on the Helical Structure and Optical Rotation of Methyl Substituted Chiral Cyclic Ester Compounds 甲基取代的手性环酯化合物的螺旋结构与旋光性分析
- The coach substituted Smith for Jones. 教练让史密斯上场，换下了琼斯。
- Synthesis and properties of new aromatic polyamides containing methyl substituted phthalazinone moiety 含间甲基取代新型聚芳酰胺的合成和性能
- Tom substituted for the injured player. 汤姆替换了那个受伤的运动员。
- Calculation of second-order nonlinear optical properties for methyl substituted triazine derivatives 甲基取代三嗪衍生物二阶非线性光学性质的理论计算
- Substituted Hydrazine 取代苯肼
- The understudy was substituted when the leading actor fell ill. 主角演员患病，由替角代替演出。
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- A striker was substituted for a midfield player in the last half-hour of play. 在比赛的最后30分钟里，一个中场运动员被一个强攻手替换了下去。
- We substituted a red ball for blue to see if the baby would notice. 我们用红皮球换下了蓝皮球，看这婴儿会不会发觉。
- Reaction with hydrazine forms the hydrazidine. 与肼反应时,形成肼定。
- Home-made parts are being substituted for imported ones. 国产零件取代进口零件。
- Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
- She substituted margarine for butter. 她用人造的奶油代替黄油。
- Abstract: The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions. 摘要： 以丁酮连氮和去离子水为原料，研究了在催化剂条件下丁酮连氮水解制水合肼的不同工艺条件；
