公母端内孔平齐的设计使得油气在传送过程中不会发生紊流现象，减小传输阻力。
The design of flush inner holes at male and female ends enables the oil gas not to be subject to turbulence in the transmission process, and reduces the transmission resistance.
背板与散热器可以通过螺钉和螺 母、螺钉与外翻螺纹、螺钉与螺纹孔相互固定连接。
The backboard connects with the radiator by the bolt and the nut, by the bolt and the everting whorl, or by the bolt and the whorl bore mutually.
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