常見例句雙語例句In this paper the mining practice of extra high grade ore is introduced.本文主要介紹特富礦的采礦實踐。The influencing factors of ore cut off grade for mining enterprises under the market economy condition are analyzed.分析市場經濟體制下影響礦山企業(yè)礦石邊界品位的主要因素。In this background, it is important to study the ore grade distribution and the mining method of donggou molybdenum mine are studied.在此背景下對東溝鉬礦礦石品位分布及采礦方法進行研究意義重大。權威例句This is due to lower throughput capacity at Goldstrike in Nevada as autoclaves are modified, along with mining in lower-grade ore zones at several mines.FORBES: Barrick Gold Reports 4Q Net Loss; CEO Pledges Disciplined SpendingNewmont attributed the lower production to the processing of lower grade ore from stockpiles as it prepared for a new phase of mining at the vast open pit in the mountains of Sumbawa.FORBES: Newmont Mining's Rocky Year And The Way ForwardNewmont has attributed the lower production to the processing of lower grade ore from stockpiles as it prepares for a new phase of mining at the vast open pit in the mountains of Sumbawa.FORBES: Newmont's Revised Production Forecast In Indonesia May Cause Labor Troubles 返回 mining ore grade