如果油缸内残留空气受急剧夹压时，那么，由于液压油的作用，有可能使密封圈烧损。
If the residual air in cylinder is impacted by abrupt clamp pressure the seal ring will be damaged due to the effect of diesel oil.
衬管补贴工艺技术能实现对射孔井段、套损部位的有效补贴，延长油(水)井开发生产的周期。
The technology of liner subsidy is effectively done to perforated parts and destroyed casing which can prolong the period of the water and oil Wells for production.
因而铝合金表面涂敷矿物油和BBC的混合物时，电极烧损程度较轻，电极使用寿命得到了延长。
Hence, the spot welding result of aluminum alloy with the coating mixture of mineral oil and BBC is better, and the electrode life of aluminum alloy spot welding is prolonged.
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