鍍覆孔 的英文怎麼說
中文拼音 [dùfùkǒng]
鍍覆孔
英文
plated through hole-
Quasi - interfacing plated - through hole
準表面間鍍覆孔Piston plated by 0. 5 - 3u tin on the surface in chemical way, the tin layer with little hole has the lubri - cative quality of soft metal. it can absorb more lubricative oil to drop the friction between the piston and cylinder
在活塞表面用化學方法鍍覆05 . - 3的錫層,多孔的錫層有軟金屬的良好潤滑特性,能吸附較多潤滑劑,降低了活塞與氣缸音的摩擦功
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