亚烷基
- 网络Alkylene;alkylidene;Alkylidene group
亚烷基-
合成了14种（Z）-1-乙酰基-3-亚芳基（亚烷基）-2,5-哌嗪二酮（4a&n），并讨论了产物的构型。
Fourteen compounds of ( Z ) - 1-acetyl-3-arylidene ( alkylidene ) - piperazine-2 , 5-dione ( 4a - n ) were synthesized . The configuration of products were discussed .
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通过研究残留奥氏体和氮碳化合物的含量对硬度、耐磨性和冲击强度的影响，表明使用10%的水性聚（亚烷基）二醇淬火液淬火时的效果最佳。
The effect of the amount of retained austenite and carbides ( carbonitrides ) on : hardness , abrasive wear resistance , and impact strength showed that the best results were obtained when a 10 % aqueous solution of a polyalkylene glycol quenchant was used .