1、The longer the contact time was, the easier to be infected.
接觸時(shí)間越長(zhǎng)越容易感染。

2、The carbon particle size and the empty bed contact time affected MCRB performance.
空床接觸時(shí)間(EBCT)、活性炭粒徑對(duì)MCRB實(shí)驗(yàn)有一定影響。

3、The effect of contact time on methylene blueadsorption onto wheat husk was studied.
以天然麥殼為吸附劑，研究了時(shí)間對(duì)麥殼吸附水溶液中亞甲基藍(lán)（MB）的影響。

contact time翻譯