胶件密度、机械强度、硬度、耐介质系数等性能指标均达到技术要求。
The density, machinery intensity, hardness and medium resistance index of the rubber products meted the technology requirement.
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。
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.
有织物机械性能的改变，诸如重量，厚度，硬度，透气，断裂强力和伸长度等性能的改变。
There are changes in mechanical properties of the fabric such as weight, thickness, stiffness, permeability, or breaking strength and elongation.
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