underground shaft 中文意思是什麼

underground shaft 解釋
地井
  • underground : adj 1 地（面）下的。2 隱蔽的，秘密的。3 （電影，報刊等）標新立異的，試刊的，試驗性而非正式的。4 ...
  • shaft : n 1 箭；箭桿。2 （槍、槌、斧等的）柄；矛。3 【植物；植物學】稈；莖；柄。4 【動物；動物學】羽軸；...
  1. The influence factors and optimal scheme of connected - triangle surveying with shaft is analyzed in detail. the formula for calculating the lateral transfixion errors of underground traverse with added gyro orientation line is derived strictly, the calculation results show that the accuracy can be increased obviously by the way of orienting added gyro lines

    詳細分析了聯系測量各因素對方位傳遞的影響，探討並比較了加測陀螺方位角后地下導線的精度提高問題，論證了加測陀螺方位角后直伸等邊導線終點精度的嚴密計算公式及陀螺方位邊布測的最佳位置。
  2. Controlled blasting method applied to demolishing underground reinforced concrete pile shaft is presented according to specific circumstances of drilling machine and outside restraint, especially including attention of drilling, charging and initiating etc

    介紹了地下鋼筋混凝土樁體的控制爆破方法，以及在鉆孔設備及外界約束較特殊的情況下，鉆孔、裝藥及起爆等方面的注意事項。
  3. Abstract : controlled blasting method applied to demolishing underground reinforced concrete pile shaft is presented according to specific circumstances of drilling machine and outside restraint, especially including attention of drilling, charging and initiating etc

    文摘:介紹了地下鋼筋混凝土樁體的控制爆破方法，以及在鉆孔設備及外界約束較特殊的情況下，鉆孔、裝藥及起爆等方面的注意事項。
  4. Application of water infusion blasting to demolishing underground pile shaft

    水介質爆破拆除地下樁體的實踐
  5. On that occasion, the miners had staged a pithead protest saying they did not want to go underground as floodwater was already pouring into the shaft despite management claims it was under control

    那時候，盡管管理層聲稱洪水已受到控制，礦工們曾在坑口上抗議說，由於大水已經湧入礦井，他們不想去地下。
  6. Application of fuzzy comprehensive evaluation method in identifying water source of water - rush in underground shaft

    模糊綜合評判法在判別礦井突水水源中的應用
  7. Construction of underground powerhouse access shaft of taleghan hydropower and water conservancy project in iran by use of multiple shaft slide forms

    伊朗塔里干水利樞紐地下廠房交通豎井多井滑模與施工
  8. According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed

    本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統，主要內容如下：針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀，回顧了國內外礦用高壓防爆開關保護系統的發展歷史，分析了目前國內高壓饋電開關保護系統所存在的問題，提出了「基於零序電壓基波啟動，五次諧波功率方向比較」的選擇性漏電保護原理，設計了相應的五次諧波提取電路和功率方向鑒別電路。
  9. Influence of underground mining on shaft towers in luzhong mining areas

    魯中礦區地下開采對豎井井塔樓的影響分析
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