在供热系统中的蒸汽主管线和小型加热设备是最理想的疏水阀之一。
It is one of the most ideal traps in boiler system steam tracing and midget heating system.
安装一条旁路管线，通过释放过大的压力实现主管线压力的精确控制。
Installed on a by-pass line, mainline pressure is accurately controlled by relief of excess pressure.
集油盒内的残雾通过排雾口到残雾回收装置的支管线、主管线，最后回到残雾回收主机。
Oil gathering box residual mist through mist mouth and the residual mist branch pipeline, mainline, finally to return to residual mist recycling host.
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