natural abrasive

基本解释

Since then, a natural abrasive in the abrasive in the proportion of reduced gradually.
此後，天然磨具在磨具中所佔比例逐漸減少。
Abrasives source of their raw materials, there are two kinds of natural abrasive and artificial abrasives.
磨具按其原料來源分，有天然磨具和人造磨具兩類。
This paper discusses the performance and application of natural abrasive such as diamond, corundum, garnet, quartz, flint, pumice, diatomite, hematite and perlite.
本文介紹了天然金剛石、天然剛玉、石榴石、石英、燧石、浮巖、矽藻土、赤鉄鑛、珍珠巖等天然磨料的性能特點和其應用。