quartz powder

基本解釋

The method of on line measurement and control of quartz powder purity was introduced.
主要介紹了生産線上對石英粉純度實施檢測與調(diào)控的技術路線和方法。
The high cycle rate of the valves, and the abrasive nature of the quartz powder require an abrasion resistant valve that will last.
由於閥門使用的高頻率，以及石英粉末的研磨特性，都要求耐磨性很高的閥門才經(jīng)受得起。
Objective To investigate occupational hazard status on a small scale quartz powder processing services and the measures of management.
目的探討小型石英粉加工行業(yè)的職業(yè)病危害狀況和治理經(jīng)騐。

"But if you look at it carefully, you find that granite contains quartz, and quartz when its ground to a fine powder and inhaled, can cause silicosis."