rotary percussive drilling
回转冲魂进
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- scaffolding n. 脚手架；搭脚手架的材料
- hedging n. 限制；模糊；对冲；套头交易；平衡交易；抛买 v. 围住；约束；限制（hedge的ing形式）
- callous n. 硬皮；老茧 adj. 无情的；麻木的；硬结的；起老茧的 vt. 使冷酷无情；使硬结；使生茧 vi. 变得冷酷无情；结茧；变硬
- carport n. 车库；（美）车棚
- roundel n. 小圆盘；圆形饰物
- feudalism n. 封建主义；封建制度
- youngish adj. 还年轻的，颇年轻的
- dysphonia n. [耳鼻喉] 发声困难；言语障碍
- greenway n. 园林路；林荫道路 n. (Greenway)人名；(英)格林韦
- commentary n. 评论；注释；评注；说明
- bearish adj. 粗暴的；如熊的；股票看跌的
- sphenopalatine adj. 蝶腭骨的
- pillaging vi. 掠夺；抢劫 vt. 掠夺；抢劫 n. 掠夺；掠夺物
- drat n. (Drat)人名；(法)德拉 vt. 诅咒，咒骂
- centered adj. 居中的；有圆心的 v. 集中；居中（center的过去式和过去分词形式）
- wanted v. 缺少( want的过去式和过去分词 )；应该；打算；需要…在场 adj. 受通缉的；被征求的
- altitude n. 高地；高度；[数] 顶垂线；（等级和地位等的）高级；海拔
- brest n. 布雷斯特（法国一座军港城市）
- script n. 脚本；手迹；书写用的字母 vt. 把…改编为剧本 vi. 写电影脚本
- syllabus n. 教学大纲，摘要；课程表
考试词汇表
- coefficient of pipe friction
- coefficient of potentiometer
- coefficient of power reserve
- coefficient of recombination
- coefficient of rectification
- coefficient of refrigeration
- coefficient of relation ship
- coefficient of reserve power
- coefficient of road adhesion
- coefficient of rock strength
- coefficient of sedimentation
- coefficient of selfinduction
- coefficient of silt transfer
- coefficient of skin friction
- coefficient of soil reaction
- coefficient of sound damping
- coefficient of speed reserve
- coefficient of stabilization
- coefficient of the expansion
- coefficient of train removal
