spirane structure的用法和樣例：
例句
- Recently the development of a new-type organophosphorous pesticide with ternary asymmetric structure and heterocycle structure has been very active.
帶有三元不對稱(chēng)結構和雜環(huán)結構的新型有機磷殺蟲(chóng)劑的開(kāi)發(fā)，近年來(lái)一直比較活躍。 - The breech lock closure structure and the large flange connection structure of high pressure heat exchangers have been compared.
就高壓換熱器中螺紋鎖緊環(huán)結構及大法蘭連接結構作了比較。
