... 胶粘剂 adhesive 机械固定件 mechanical fastener 对于具有薄抹面层的系统，保护层厚度应不小于3mm并且不宜大于6mm。对于具有厚抹面层的系统，厚抹面层厚度应为25～30mm。 ...
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Bolt: Mechanical fastener, usually used with a nut, for connecting two or more parts.
螺栓：通常与螺母一起用于连接两个或更多零件的机械紧固件。
Bolted joints can be readily disassembled and reassembled; hence Bolts or screw fasteners are used more than other types of mechanical fastener.
螺栓连接易于装、拆；因此，螺栓或螺纹件紧固件较其它机械扣件用得更广。
Surface heat treatment: surface heat treatment is a process that improves the hard-ness or other mechanical property of the fastener in any surface area.
表面热处理：是增加强紧固件的硬度或任何表面积上的机械性能。
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