“绝缘的”的英语？

测量电池是由绝缘的银阴极组成的.The measuring cell consists of an insulated silver cathode.旋转滑环是用片状塑料衬套与轴绝缘的.The rotating slipring is insulated from the shaft by a laminated plastic bushing.我们的电动工具都是双重绝缘的,并符合国际安全标准.Our electrical tools ...