bottom bench 中文意思是什麼
bottom bench
解釋
下臺階-
Then the article analyses the effecting elements about the economic result of blasting and puts forward some improving measures, and summarizes optimizing model on economic result of blasting both internal and overseas bearing upon. the theory is based on the blasting cost model, which proposed by dr. zhong hanrong. combining with the specialties of water and electricity engineering, starting off through blasting result, it emphasizing considers drilling cost, deep hole bench blasting cost, reblasting cost, and the cost of bottom fleet hole blasting that in mixed loading emulsion explosive blasting
本文在加拿大鐘漢榮博士提出的爆破成本模型基礎上，結合水電工程的特點，從爆破效果出發，著重考慮了應用混裝乳化炸藥爆破的鉆孔成本、深孔梯段爆破成本、二次爆破成本和爆破后根底淺孔爆破成本，以塊度、振動、安全為約束條件，以這四項成本最小為目標函數，廣泛收集各種爆破經濟技術條件，建立了爆破優化經濟數學模型。 -
It also expounds the advantages of mixed loading explosive exploding. at the same time, the lateral and bottom fractural range of bench shooting in deep - hole of rock are tested, analyzed and calculated
同時對爆破產生的應力波、爆生氣體對巖石爆破破巖的影響也作了介紹，並分析了巖石力學性質與可爆性之間的關系。 -
Taking bench shooting of the shuibuya yihongbao project as example, it makes use of the digital television system of drilling overall - hole wall to actually measure, the testing result of lateral fractural range is 4 - 5m, and that of bottom fractural range is about 3m
本文試驗工作是以水布埡溢洪道工程梯段爆破為實例，採用鉆孔全孔壁數字電視系統對混裝乳化炸藥爆破破裂范圍進行了實際測試，測試結果為：側向破裂范圍為4 5m ，底部破裂范圍值為3m 。 -
According to the stress wave theory on explosive exploding propagating in the rock, it builds up mathematical model of fractural ranges in the rock, and carry out actual calculation and analysis on fractural range of bench shooting in deep - hole. as a result of calculation, the lateral and bottom fractural range are about 1. 9m
根據炸藥爆炸在巖石中傳播的應力波理論，建立巖石爆破破裂范圍數學模型，並對深孔梯段爆破破裂范圍進行了實行計算分析，計算結果為：混裝乳化炸藥巖石深孔梯段爆破側向底部破裂范圍為1 . 9m 。 -
High angle smooth bottom steel bench plane
高角平底鋼刨 -
Low - angle smooth bottom steel bench plane
低角平底鋼刨 -
Regular smooth bottom steel bench plane
普通平底鋼刨
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