small hole drilling 中文意思是什麼
small hole drilling
解釋
小口徑鉆進-
New drill bit for drilling small diameter deep hole
新型小徑深孔鉆頭 -
The drilling hole pour pile technique has been wide - ranging used in the high buildings " foundation and base of the wide span construction and base of bearing weighty load construction, but the geology conditions that surrounding the pile are differ in thousands of ways, extraordinary, the soil there is small opening and it can be compressed and the bottom of the pile ' s hole there is much more dregs, so many confuse reasons ca n ' t be computed weaken the pile ' s ability of bear load
鉆孔灌注樁施工技術在高層建築、大跨度、大承載力的基礎工程中得到了廣泛的應用,但是,地層土壤存在孔隙、土壤具有可壓縮性、孔底存在沉渣等許多不可明確計算的因素,使樁的承載力存在不同程度的削弱,實際承載力與設計值有較大出入。 -
High speed electro - discharge small hole drilling machines part 2 : parameters
高速電火花小孔加工機.第2部分:參數 -
High speed electro - discharge small hole drilling machines - part 3 : testing of accuracy
高速電火花小孔加工機.第3部分:精度檢驗 -
High speed small hole drilling electro - discharge machines - part 1 : techenical requirements
高速電火花小孔加工機.第1部分:技術條件
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