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- Dendritic noble nanostructured metals are prepareted using the replacement reaction method with HAuCl4 (or AgNO3), zinc and water as precursors. 以氯金酸(HAuCl4)/硝酸银(AgNO3)、锌和水为原料,采用置换反应法制备金、银枝晶纳米材料。
- By using rice bran phytin and maize phytin as material with the method of autophoteolysis or oxalic acid replacement reaction phytic acid was extracted. 以米糠、玉米植酸钙为原料,采用自溶法和草酸置换法制取植酸。试验表明,无论是以玉米植酸钙还是以米糠植酸钙为原料,用自溶法制得植酸的质量明显优于草酸置换法。
- The preparation method of potassium pentaborate (KB5O8) was studied with the replacement reaction between potassium chloride and sodium pentaborate solution. 研究了利用氯化钾晶体和五硼酸钠溶液的复分解反应制备五硼酸钾的方法。
- What?s more,it was found the degree of replacement reaction increased with the raise of reaction time and temperature. Characteristics of Photopolymerization of St and MMA with BDC as iniferter wre investigated. 以BDC作为iniferter引发St、MMA光聚合 ,单体St和MMA的转化率随光照时间的增加而增加 ,但没有呈现出线性关系 ,此外 ,反应环境温度高 ,单体转化率增加 ;
- Conclusions The interruption of histone-to-protamine replacement reaction (HPRR) and alteration of nuclear basic proteins induced by low dose gossypol treatment might lead to infertility. 结论服用低剂量醋酸棉酚能阻断组蛋白-精核蛋白取代反应(HPRR)及影响精核蛋白含量,这可能是醋酸棉酚导致不育的重要原因;
- Ammonium sulphate with calcium carbonate as gross by product can be obtained by replacement reaction with the raw materials including phosphogypsum, ammonium bicarbonate and ammomia water. 以磷石膏、碳酸氢铵和氨水为原料进行复分解反应制备硫酸铵,副产碳酸钙粗品。
- Methods Candesartan cilexitil was prepared from 3-nitro-1,2-benzenedicarboxylic acid via ten reactions,including esterification reaction,chlorination reaction,Curtis rearrangement,replacement reaction,etc. 方法设计了以 3 硝基 1,2 苯二甲酸为起始原料 ,经酯化、氯化、Curtis重排、取代、还原、两步环合、酯基碱水解、酯化、转晶共 10步反应 ,制备得到目标化合物的合成路线。
- Discussion on the concept of the double replacement reaction 关于复分解反应概念的探讨
- In addition, we supply small parts for replacement. 此外,我们还提供备用小零件。
- Good job they have get a replacement for him. 他们把他替换下来真不错。
- Could I ask for your reaction to this policy? 我能问一下您对这个政策的反应吗?
- We need a replacement for the secretary who left. 我们需要一个人代替已离职的秘书。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- A replacement for deleted matter. 替代被注销内容的东西
- I'm displeased at your reaction. 我对你的反应很不满意。
- The forces of reaction made reform difficult. 反动势力给改革造成了困难。
- His reaction on this matter is unexpected. 没料到,他对这件事的反应是这样的。
- A sharp reaction; a repercussion. 强烈反应后果,影响
- Their reaction was one of qualified praise. 他们的反应是一种有保留的称赞。
- His initial reaction was one of shock. 他最初的反应是震惊。