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- The general synthesis method of stilbenes was studied through the synthesis of four stilbenes with the framework of aryl substituted acrylonitrile. 对合成结构较简单的4种以芳基取代丙烯腈为骨架的芪类化合物的常用合成方法进行了研究。
- The coach substituted Smith for Jones. 教练让史密斯上场，换下了琼斯。
- Tom substituted for the injured player. 汤姆替换了那个受伤的运动员。
- aryl substituted acrylonitrile 芳基取代丙烯腈
- substituted acrylonitrile 取代丙烯腈
- The understudy was substituted when the leading actor fell ill. 主角演员患病，由替角代替演出。
- 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。
- Home-made parts are being substituted for imported ones. 国产零件取代进口零件。
- Polyacrylonitrile is insoluble in acrylonitrile. 聚丙烯腈不溶于丙烯腈。
- She substituted margarine for butter. 她用人造的奶油代替黄油。
- He substituted as the typist in the office. 他代替做这个办公室的打字员。
- We had to eat some potatoes substituted as a meal. 我们只得吃了几个马铃薯充饥。
- He substituted for the typist during her absence. 打字员不在时由他代替。
- He substituted cunning for their simplicity. 他以奸滑代替了他们的直率。
- We substituted John for Bill at first base. 第一垒我们让约翰代替比尔。
- He substituted for the worker who was iii. 他顶替了那位生病的工人。
- Nitrile is a copolymer of butadiene and acrylonitrile. 腈是一种丁二烯与丙烯腈的共聚物。
- They substituted milk for cream. 他们用牛奶代替乳脂。
- Acrylonitrile is not completely stable under reaction conditions. 丙烯腈在反应条件下是不完全稳定的。
