1、In case of small current measurements the insulating materials available and rather limited.
就小電流測量而言，可用的絕緣體材料的選擇相當有限。

2、A window frame made of insulating materials according to the principle of an electric fly-flap.
根據(jù)電蚊蠅拍的原理，用絕緣材料做窗框。

3、Insulating materials of this type are in two forms.
這類保溫材料有兩種形式。

insulating materials翻譯