free silica

常見(jiàn)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(xué)物相分析方法。
Free silica in geological exploration dust is measured by both Xray diffraction and pyrophosphoric acid methods.
對(duì)粉塵中遊離二氧化矽含量進(jìn)行了X線衍射法和焦磷酸消化法的對(duì)比測(cè)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(yīng)用X射線衍射儀測(cè)定鑛山呼吸性粉塵中遊離二氧化矽含量的基本原理、實(shí)騐條件以及操作過(guò)程、方法步驟等。