同时脚控开关亦以橡胶成型被覆，防水、防污，安全无虑。
At the same time foot-switch Forming also rubber coated, waterproof, anti-pollution, safe and secure.
介绍了硅橡胶防污增爬裙的防污机理和试验研究情况，分析了增爬裙安装数量以及安装位置对防污性能的影响。
The antipollution mechanism of creepage extenders and the experimental study are introduced in this paper. The impact on antipollution performance is analyzed in the installation quantity and...
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