Open the purge valve until the water flows clear and free of bubbles.
打开排气阀，直到水流清澈没有气泡。
A throttle valve must be installed along outlet pipeline when the conditions of work are not clear or stable, this can guarantee operation at the design point.
当工作条件不明或不稳定时，出口管路中必须安装节流阀，以保证泵在设计点运行。
The clear water supply control system of Xiaolangdi Power Station includes a valve control system of the clear water pool and a cycle pump control system.
小浪底水力发电厂清水供水系统分为清水池阀门控制系统和回水泵控制系统。
Following installation, the valve lever MUST be operated AT LEAST ONCE A YEAR by the water heater owner to ensure that the waterways are clear.
安装后，热水容器拥有者每年必须至少操作阀杆一次，以确保水路畅通。
Stand clear of the regulator and valve outlet, while opening the valve.
开启阀门时，躲开调整器和阀门排气口。
Valve lever must be tripped at least once a year to insure that waterways are clear.
阀门手柄每年至少要使用一次，以确保水路畅通。
Never crack open a hydrogen cylinder to clear the valve of dust, as the escaping hydrogen may ignite.
由于溢出的氢可能着火，禁止啪地一声打开氢钢瓶。
Position by the valve stem threads are divided into clear and dark bar bar gate valve two...
按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。
Position by the valve stem threads are divided into clear and dark bar bar gate valve two...
按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。
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