v. t. To run or pass under; especially (Naut.), to pass along and under, as a cable, for the purpose of taking it in, or of examining it.
vt. 在...下通过(或跑过), 用手拉起并顺序检查(电缆、软管等)n. 在底下通过的东西(如流水等), 低于估计的产量[计] 欠载运行