常見例句雙語例句To provide accurate reading of head pressure , the line should connect at the base of the water column.為了提供精確的水頭壓力參數(shù)，管線應該連接到水柱的底部。For the sun and sand, scoop up your laptop, head to the beach, plop down near the water's edge, and read this column.置身于陽光和沙灘中，面朝海灘，打開便攜式計算機，然后閱讀本專欄。Gradation of sand column and sediment concentration of muddy water and water head are remarkably effective factors for the fine grain distribution in sand column.砂柱的顆粒組成、水含沙量和入滲水頭對滯留分布產(chǎn)生顯著的影響。 返回 water column head