spirane structure
英
美
- 螺环结构
双语例句
- Recently the development of a new-type organophosphorous pesticide with ternary asymmetric structure and heterocycle structure has been very active.
带有三元不对称结构和杂环结构的新型有机磷杀虫剂的开发，近年来一直比较活跃。 - The breech lock closure structure and the large flange connection structure of high pressure heat exchangers have been compared.
就高压换热器中螺纹锁紧环结构及大法兰连接结构作了比较。
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