隔離工

Conductors let electricity through, but insulators don't let through. 導(dǎo)體讓電流通過，而絕緣體則不讓通過。

Conductors and insulators are of great use . 導(dǎo)體和絕緣體都很有用。

Galvanized Accessories For Glass Insulators. 玻璃絕緣體用電鍍附件。

Conductors and insulators are of great use. 導(dǎo)體和絕緣體都很有用。

These things are called insulators. 這樣的物質(zhì)我們叫絕緣體。