core lifter 中文意思是什麼
core lifter
解釋
開口環提芯器-
Core lifter case
巖芯提取器 -
So far as the mixing material for building the earth - rock fill dam with clay core for shiquanhe hydropower station is concerned, the effect from the variation of the sand content for the filter material on the maximum dry density and the relevant parameters are to be determined within the variation area of the mixing mass ratio of ( 46 ~ 54 ) : ( 54 ~ 46 ) through this experiment, due to the max, dry density is largely influenced by the mixing ratio of both the lifter material and the clay and the sand content of the filter material, so as to determine the actual filling compactness of the mixing material of the core
摘要由於獅泉河水電站粘土心墻土石壩摻合料的最大幹密度受反濾料與粘土料的摻合比例、反濾料含砂率的影響較大,因此擬通過本試驗確定摻合質量比在( 46 ~ 54 ) : ( 54 ~ 46 )范圍變化時,反濾料含砂量變化對最大幹密度的影響程度及相關參數,從而確定心墻摻合料填築的實際壓實度。 -
The extension drill rod which can be used for higher capacity drill, the drill hole can be extended to sezeral meetrs, when drilling the straight hole, the core lifter can help coring
選用加長鉆桿于較大能力的鉆機,可將鉆孔延深至數米,鉆垂直孔時,可採用取芯器配合取芯。
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