本文主要讲述了除湿器的用法。
本文主要讲述十进制计算机的运算原理。
This text has told operation principle of the decimal system computer mainly.
本文主要讲述甲醇装置主精馏塔侧壁腐蚀的修复方法和防腐措施。
This article gives an account of ways of mending and preventing erosion of methanol equipment main rectifying tower.
应用推荐