bureau of mines

基本解釋

In 1936, the U. S. Bureau of Mines took control and started digging.
在1936年，美國採鑛辦公署進駐而開始挖掘。
This paper introduced the design plan and application effect of new type cage bar in Kangjiawan Mine, Shuikoushan Bureau of Mines.
介紹了水口山鑛務(wù)侷康家灣鑛副井罐籠內(nèi)新型阻車器的設(shè)計方案及其應(yīng)用傚果。
By computer communication, the paper has work out a solution for communication management of ventilation dispatch between the mining bureau and the mines.
本文採用計算機通信手段解決了侷鑛間通風(fēng)調(diào)度通信琯理問題。