safety drift 中文意思是什麼

safety drift 解釋
安全水平巷道
  • safety : n. 1. 安全;平安,穩安,保險。2. (槍等的)保險器,安全瓣;〈口語〉低座腳踏車[自行車] (=safety-bicycle)。3. 安全設備,保險裝置。4. 【棒球】安全打。
  • drift : n 1 漂亮;(潮流的)推進力。2 漂流物;吹積物;堆積物;【地質學;地理學】冰磧,漂礫。3 傾向,趨勢...
  1. Simulation and analysis are made for the various excavation schemes for the drift cut - and - fill stoping production in xiaotianjing mine district of heqing manganese ( group ) co. by 3 - d fem and the optimized excavation scheme has played a great role in assuring a safety mine production

    應用三維有限單元法對鶴慶錳業集團公司小天井礦區上向進路分層乾式充填采礦過程進行了不同開挖方案的模擬分析,所優選的開挖方案對礦山安全生產起到較大作用,模擬結果與生產實際基本一致。
  2. I have received complaints that kites on broken strings often drift over the expressways near kite - flying venues, posing a threat to the safety of motor cyclists

    本人接獲投訴,指一些鄰近放風箏場地的快速公路的路面上不時有斷線風箏隨風飄揚,威脅電單車駕駛者的安全。
  3. Metal chisels, punches, and drift pins : safety requirements

    金屬鑿鑿孔機和沖釘:安全要求
  4. Hand tools - metal punches and drift pins - safety requirements

    手工工具.金屬沖頭和尖沖釘.安全要求
  5. According to the actual condition in jinchuan longshou mine, using three - dimensional numerical simulation, this paper analyzes the stresses, displacements and safety factors of mined - out area and filling body under the conditions of different filling height of down hexagon drift, and the drew conclusions provide theoretic guidance for safety mining

    結合龍首礦的實際情況,利用三維數值模擬的方法對龍首礦下向六角形大斷面進路不同充填高度情況下采空區及充填體的應力、位移及安全率等進行了分析研究,所得出的結論為礦山安全生產提供了理論指導。
  6. According to the fact of seismic design of our country, a practical displacement - based seismic design method is put forward. the seismic performance level is divided into three : serviceability, life - safety, and collapse protection, hi order to control the performance level of the structure, the three levels are quantified with story drift angles

    為了與我國建築抗震設計規范的設防目標相協調,並便於在設計計算中予以控制,本文將建築結構的功能劃分為三個水平,即使用良好、人身安全和防止倒塌,並採用層間位移角限值來量化框架結構的功能水平。
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