根据流体力学射流理论，分析了空气幕在综采工作面隔离粉尘的作用，并根据综采工作面应用空气幕隔尘的特点，设计了空气幕。
An air curtain was designed according to the jet theory of fluid mechanics and the role and feature of air curtain to separate dust in a fully mechanized face.
隔离阀膜片的盾牌纳入流体流体流经阀门的腐蚀或纯度高的处理使其内部电磁元件的理想。
Isolation valves incorporate a diaphram that shields the fluid flowing through the valve from the internal solenoid components making them ideal for handling corrosive or high purity fluids.
隔离阀膜片的盾牌纳入流体流体流经阀门的腐蚀或纯度高的处理使其内部电磁元件的理想。
Isolation valves incorporate a diaphragm that shields the fluid flowing through the valve from the internal solenoid components making them ideal for handling corrosive or high purity fluids.
隔离阀膜片的盾牌纳入流体流体流经阀门的腐蚀或纯度高的处理使其内部电磁元件的理想。
Isolation valves incorporate a diaphragm that shields the fluid flowing through the valve from the internal solenoid components making them ideal for handling corrosive or high purity fluids.
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