actual aperture 中文意思是什麼
actual aperture
解釋
有效孔徑-
Studies have shown, lead impeller nozzle it forms the hole to be equal to size of the nozzle, gush out from light, difficult to arrange bits and realize it cut one layer of advantages effectively ; under the equal condition, rotate the nozzle by oneself, can be designed in accordance with the actual need while vary the size of aperture of hole, gush out the distance longer effectively, it is apt to give play to the role of its pulse broken rock
以此設計出限速部分的參數，且初步討論射流功率與轉速之間的關系。研究表明，內導葉輪噴頭形成鉆孔孔徑與噴頭大小相當，有效噴距小，不易排屑和實現其切向剝層優勢；同等條件下，自旋轉噴頭，成孔孔徑大小可依實際需要設計，有效噴距較長，易於發揮其脈沖破巖作用。 -
By analyzing actual cases and simulating finite element of random fracture through computer, the frequency hydraulic aperture falls within 48 ~ 50 %, i. e. eh = e48 ~ e50
通過現有研究成果的實例分析和隨機裂隙的計算機有限元模擬，相應於水力隙寬的頻率在48 ~ 50 %內，即eh = e48 ~ e50 。
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