1、The sealing ring by a similar to the rubber or plastic non-metallic materials.
該密封圈由一種類似于橡膠或塑料的非金屬材料制成。

2、Kaolin is a very important use of a very wide range of non-metallic minerals.
高嶺土是一種非常重要、用途十分廣泛的非金屬礦物。

3、MECHANISM OF REMOVAL OF NON-METALLIC INCLUSIONS IN THE ESR PROCESS
電渣重熔去除夾雜的機理

non-metallic翻譯