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- board and pillar method 房柱式开采法
- Application of Pedrail-walking Type Hydraulic Supports in Board and Pillar Mining method 房柱式开采中履带行走式液压支架的应用
- He pays 40 a week (for) board and lodging. 他每周支付膳宿费40英镑。
- He paid£10 a week for board and lodging. 他每周付10英镑膳宿费。
- China macro-economy and pillar industry! 中国宏观经济及支柱产业状况!
- board and pillar mining method 残柱式开采法
- She pays for her board and lodging, her uncle finds her in tuition. 她自己负责膳宿,她叔叔供给她学费。
- She pays for her board and lodging but her father finds her in clothes. 她自己支付膳宿费,而她父亲供给她衣服。
- Recovery of Remnant Intervening Pillars with Common Room and Pillar Method 采用普通房柱法回采顶底间柱残留矿体
- Keywords pre truncating crest room and pillar method;gently dipping middle thick ore body;rate of excavation and recovering;depletion rate;rate of wastage; 预切顶房柱采矿法;缓倾斜中厚矿体;采掘比;贫化率;损失率;
- Delivery can be made free on board and your order dispatched within24 hours. 贵方如能在二十四小时内寄出订单,本公司就以船上交货价条件交货。
- He bypassed his colleagues on the board and went ahead with the deal. 他未征求董事会中同事的意见就做了这笔交易。
- We' ll be very glad to board and lodge you. 我们将非常高兴供你们膳宿。
- chamber and pillar method 房柱开采法
- Look at the bill board and answer the questions. 看告示牌,回答下面的问题。
- The boarding and care of horses for a fee. 口粮收取费用为马提供的食宿及照料
- bord and pillar method 房柱式开采法
- Show the color board and teach: purple, orange. 出示色板并教紫色和橙色。
- breast and pillar method 房柱式采煤法
- Management of the Board and board renewal. 交易所管理与更新。