insulators

隔离工

Conductors let electricity through, but insulators don't let through. 导体让电流通过，而绝缘体则不让通过。

Conductors and insulators are of great use . 导体和绝缘体都很有用。

Galvanized Accessories For Glass Insulators. 玻璃绝缘体用电镀附件。

Conductors and insulators are of great use. 导体和绝缘体都很有用。

These things are called insulators. 这样的物质我们叫绝缘体。