... 外部接线和内部接线 Creepage distances and clearances 接地规定 Earth resistance test 防触电保护 Torque test on screw ...
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earth electrode resistance test 接地电极电阻测试
The results show that the laser surface melting treatment improves greatly the homogenization, compaction and the corrosion resistance of rare earth permeating layer under the condition of test.
结果表明，在一定条件下，激光熔凝处理可进一步提高纯铁渗稀土层组织的致密性与均匀性，显著提高稀土渗层的耐蚀性。
Corrosion resistance of aluminum tube surface with silane-rare earth composite coating was studied by electrochemical means, weight loss and salt spray test respectively.
采用电化学、失重和盐雾实验对铝管表面硅烷稀土复合膜的耐蚀性进行考察。
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