释义 |
main pipe line meinpaiplain 基本例句 周道,总管系,主管道 The plumber finds no pipe leaks and suspects a mains leak.水管工没有发现漏水的水管,怀疑是主管道漏水。 Bypasses are used in steam service for warming up before the main line is opened and for balancing pressure where the lines are of limited volume.旁路阀用在蒸汽操作中,用于在主管道开启前对其进行预热以及管道数量有限时平衡压力。 |