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- pilot drifting excavation 导坑开凿
- This paper in detail presented the transition of shaft sinking equipment for drift excavation in Wangershan Gold Mine. 摘要:介绍了在山东省望儿山金矿立井施工中,利用立井凿井设施进行平巷施工的改装方法。
- Construction Technology of "Pilot Drift and Enlarged Excavation" "先导井后扩挖"施工工艺的运用技术
- The roadheader-borne temporary support is enabled to greatly increase the productivity of drift excavation,decrease hand labour for supporting,and ensure productive safety. 在掘进机上增加机载式临时支护机,可以大大提高掘进工作的劳动效率、降低支护工作劳动强度并保障生产安全。
- raise -boring machine pilot drifting method 反井钻机导硐施工法
- Clever Idea of Showing Position in the Coal Drift Excavation Process 煤巷掘进过程中确定方位的新思路
- According to lab model experiment and theory analysis,the rational delay intervalof millisecond blasting used in rock drift excavating was acquired and a new type of long millise-cond delay detonator was researched and manufactured. 根据实验室模型试验和理论分析得出岩石巷道掘进微差爆破合理延迟间隔时间,据此研制出新型长延迟毫秒雷管。
- The pilot manages to glide down to a safe landing. 驾驶员设法使飞机滑行下降安全著陆。
- The pilot steered for the harbor. 领航员掌舵驶向港囗。
- The trainee pilot flew his first solo today. 那个受训的飞行员今天首次单独飞行。
- A small boat was drifting along. 一条小船正向前漂流着。
- A tiny fishing boat was drifting slowly along. 一只小小的渔船在缓缓地漂去。
- The pilot reports bad visibility over the airport. 飞行员向机场报告能见度很低。
- Excavation of the site will begin tomorrow. 明天开始挖掘工作。
- The country is drifting towards bankruptcy. 这个国家正在走向崩溃的边缘。
- The excavation of the buried city took a long time. 发掘埋在地下的城市花了很长时间。
- The pilot had logged over 200 hours in the air. 这个飞行员的飞行记录在200小时以上。
- The junk laid by, drifting gently with the current. 帆船顶风停驶,顺水缓慢地漂流着。
- The excavation of the bur city take a long time. 发掘埋在地下的城市花了很长时间。
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。