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- vertical additional force of mine shaft liner 井壁竖直附加力
- mine shaft liner in deep thick overburden 深厚表土中井壁
- mine shaft liner 井壁
- mine shaft liner broken 井壁破裂
- A bucket used for conveying ore or coal up a mine shaft. 桶框把生铁或煤运上矿井的框
- The rigging for hauling or lifting located at the head of a mine shaft. 在矿井顶部杆上用于提升某物的索具
- They got through into the flooded mine shaft,and rescued the comrades. 他们努力进入水淹的矿井，救出了同志们。
- They got through into the flooded mine shaft, and rescued the comrades. 他们努力进入水淹的矿井，救出了同志们。
- It will need the special extractor puller for pulling out the timing intermediate gear shaft liner and oil pump intermediate gear shaft liner when disassemble the engine timing gear mechanism. 在拆卸解体发动机正时齿轮机构时，需用专用的拨出器将正时中间齿轮轴套与机油泵中间齿轮轴套拨出。
- As often before, birds are acting like the canaries in a mine shaft and giving us early warning of dangerous change. 和以往一样，鸟类的反应正如‘煤矿里的金丝雀’，提前给我们鸣响警钟。”
- Mine shaft raised is the keg of mine production ,move at high speed and word throughout the year. 矿井提升是矿山生产的咽喉,高速运行,常年工作。
- For hoist and lifting winch for mine shaft, its joint of lifting container and steel wire should adopt wedge type cappel. 煤矿竖井用提升机和提升绞车，其提升容器与提升钢丝绳的连接，应采用楔形连接装置；
- Marble karst development in Da-hong-shan mine caused a great deal of water bursting in mine shaft, sharply lowering ground water and large scale of surface subsidence. 摘要大红山矿大理岩岩溶发育，由于突水造成井下大量涌水，同时引起地下水位急剧下降，引发了较大范围、较大规模的地面塌陷。
- The mine shaft sinking with a mine shaft drilling is a reliable mine shaft construction method to pass through a deep and thick alluvium. 钻井法凿井是通过深厚冲积层最可靠的竖井施工方法。
- Teenage boys clamber down mine shafts 30 to 50 meters deep. 孩子们沿着杆子爬到深30到50米的矿井里。
- The analyzed the features and difficulties of the support for goaf left by small coal mine in the mine shaft bottom of Shuguang Mine. 分析了曙光煤矿井底车场小煤窑遗留采空区支护的特点和难度,提出采用注浆加固、高强度锚杆、再配合预应力锚索支护方案。
- Metal material erosion mechanism and main damage form under coal mine shaft caused by erosion are introduced and propeses the measures for prevention. 介绍了金属材料腐蚀的机理和煤矿井下金属材料腐蚀破坏的主要形式,并提出了预防措施。
- Keywords skip loading pocket;slice drivage;shaft liner by stage; 箕斗装载硐室;分层掘进;分段套壁;
- Aiming at the fractured mechanism of mine shaft lining under the condition of stratum subsiding, a new type of retractable drilling shaft lining structure was proposed. 针对地层沉降条件下煤矿立井井壁的破坏机理,提出了一种新型可缩性钻井井壁结构。
- The original emphasizesd on construction in mine shaft deep thick swelling claypan in Tang-kou, the damage of outward layer a well of wall and some efficient measures. 介绍了唐口副井井筒冻结段深厚膨胀黏土层施工、外层井壁变形破坏情况及采取的有效措施;取得了一些有用的经验.;为类似地层施工提供借鉴。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
