unground
美
英 
例句
Extenders for paints - Specifications and methods of test - Part 21 : silican sand (unground natural quartz).
涂料用补充剂.规范和试验方法.第21部分:石英砂(地下天然石英)
Extenders for paints - Specifications and methods of test - Silica sand (unground natural quartz)
涂料填充剂.规范和试验方法.石英砂(地下天然石英)
Metal Balls for Unground Bearings and Other Uses
未磨过的轴承和其它用途的金属珠