fuel oil pipe connection 燃油管接头
Is mainly the hydraulic pipe damage or the hydraulic fluid pipe connection seal is lax, should replace or the repair promptly, ceases the oil leak.
主要是液压管损坏或液压油管接头密封不严，应及时更换或修复，杜绝漏油。
The development of the oil well pipe with special thread connection is a systematical project involving development of relevant gauges and measuring tools for the thread as a key item.
特殊螺纹接头油井管的开发是一项系统工程，其中量规、量具设计是开发中的一个重要环节。
The connection part of the preheating pan of constant temperature oil and the oil conveying pipe is near the bottom of the preheating pan of constant temperature oil;
恒温油预热锅与输油管的连接部分在靠近恒温油预热锅底部；
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