Purpose of the study is to build supporting basic equipment for the science of petroleum mining machinery, and provide fundamental experimental platform for the study on oil-drilling rig.
研究目的在于为我校的石油矿场机械学科建设配套基本设备，为从事石油钻机机械研究提供一个基础实验平台。
Such bearings are widely used in metallurgy, mining, petroleum, paper making, construction and other large machinery and equipment.
此类轴承广泛应用于冶金、矿山、石油、造纸、建筑等大型机械设备。
Widely used in machinery, petroleum, chemical, metallurgical, mining, and electric power sector, measured on copper and copper alloy non-aggressive media pressure.
广泛应用于机械、石油、化工、冶金、矿山、电力等部门，测量对铜和铜合金无腐蚀性介质的压力。
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