SGM have the ability to generate liquid hydrocarbons beside gas hydrocarbon generation, but MYG vitrinite is mostly the gas-prone.

SGM基质镜质体除了生成气态烃外，还可以生成一定数量的液态烃，而MYG均质镜质体则主要以生成气态烃为主。

Type MYG Varistors are made of semiconductor ceramic materials composed mainly of zinc oxides. They have non-linear resistance that changes as a function of applied voltage.

型压敏电阻器是以氧化锌为主要原料制造的半导体陶瓷元件，其电阻值随施加电压的变化而呈非线性变化。