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- Currently,the DTH rigs use generally a percussion rotary penetration sys-tem to generate the rotaing torque that produces a shearing action for breaking rock. 目前，潜孔钻机普遍采用冲击回转凿入系统，用以产生回转力矩，对岩石产生剪切作用而成颗粒分离。
- XM84-165 ROTARY BIT FOR UNDERGROUND MINING XM84-165型地下矿用三牙轮钻头
- He bit off a large piece of the apple. 他咬下一大块苹果。
- She was a bit queer after her husband deserted her. 她遭丈夫遗弃後精神有点失常。
- A similar board used as a percussion instrument. 敲击板用作打击乐器的一种类似的板
- I reckon the girl is a little bit boyish. 这想这个女孩有点男孩子气。
- The seedling have shrivel up a bit in the hot sun. 在炎热的太阳光下，幼苗已有一点乾枯。
- A bit of embrocation will soothe your bruised knee. 用一点搽剂可使你那青肿的膝部消肿。
- The gardener asked me for a rotary lawn mower. 园丁向我要一台旋转式割草机。
- The love scenes in the play were a bit overdone. 剧中的情爱场面演得有点过火了。
- percussion rotary boring 冲积钻钻探
- I'm a little bit tired. Let's take a short rest. 我有点累了。让我们休息一会儿。
- Setting up this business was a bit of a gamble. 开办这样的公司有点冒险。
- It wouldn't do him any harm to work a bit harder. 工作努力点对他没什么害处。
- He only put a bit on his plate to make fashion. 他只是拨了一点食物到盘子里做做样子。
- He read all the interesting bit in the newspaper. 他把报纸上点点滴滴有趣的新闻都读了。
- Sale is down a bit due to the revaluation. 由于货币升值销售额有下降。
- Percussion instruments or their players considered as a group. 把打击乐器或他们的演奏者看成一组
- We're a bit cramped for space in this attic. 在这间阁楼里我们有点活动不开。
- Let the broth simmer down a bit more. 让肉汤炖得再久一些吧。
