side arm是什么意思 side arm怎么读
side arm的英文翻译是什么意思，词典释义与在线翻译
Noun:- a firearm that is held and fired with one hand
side arm的用法和样例
- In this paper we prepared a series of azacrown ethers with side chains of tropone rings and their derivatives by the reactivity of seven-membered aromatic tropone rings.
本文利用七元芳香卓酮环的反应活性，合成出了一系列以卓酮环及其衍生物为侧臂的氮杂冠醚。
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