free silica

常見例句

A method for chemical phase analysis of free silica in limestone was discussed in this paper.
介紹了石灰?guī)r中遊離二氧化矽的化學物相分析方法。
Free silica in geological exploration dust is measured by both Xray diffraction and pyrophosphoric acid methods.
對粉塵中遊離二氧化矽含量進行了X線衍射法和焦磷酸消化法的對比測定。
Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper.
本文介紹了應用X射線衍射儀測定鑛山呼吸性粉塵中遊離二氧化矽含量的基本原理、實騐條件以及操作過程、方法步驟等。