1、The longer the contact time was, the easier to be infected.
接觸時間越長越容易感染。

2、The carbon particle size and the empty bed contact time affected MCRB performance.
空床接觸時間(EBCT)、活性炭粒徑對MCRB實驗有一定影響。

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

contact time翻譯