Pressure switch (optional) is installed in system to realize automatic transfer for pump under low oil pressure.
系统中设有压力开关(可选)，以实现在低限油压时的泵组自动切换。
Based on the practical situation of flammable gas leakage from pump station in oil storage, flammable gas leakage inspection by computer information process system to solve the problem is suggested.
根据目前油库泵站内存在可燃气体经常泄漏的实际情况，提出并应用计算机信息处理系统解决可燃气体泄漏监控问题。
Simple in structure, small in volume, light in weight, little in energy loss, screw pump oil system could decrease oil cost, improve efficiency, and be of widely prospect.
螺杆泵采油系统结构简单、体积小、重量轻、耗能小，使用螺杆泵采油可降低采油成本，提高采油效益，具有广泛的发展前景。
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