特性:高、中、低粘性。
在任何情况下,都只能用浸染过有色低粘性塑料的砂岩所制成的高质量薄片。
In any case, only good quality thin sections prepared by impregnating the sandstone with coloured low-viscosity plastic should be used.
在任何情况下,都只能用浸染过有色低粘性塑料的砂岩所制成的高质量薄片。
In any case, only good quality this sections prepared by impregnating the sandstone with coloured low-viscosity plastic should be used.
应用推荐