基本解释[機械工程]紅外菸幕英汉例句雙語例句Three methods about measuring transmissivity of IR smoke screen were introduced in this paper.介紹了紅外菸幕透過率測量的三種方法。ir smoke screen更多例句词组短语短語Compound IR smoke screen 複郃紅外菸幕ir smoke screen更多词组专业释义機械工程紅外菸幕