silt upとは 意味・読み方・使い方

The perforated pipe 11 is placed at the height of a sand layer 1 under the ground and the pipe 12 without holes is placed at the height of a silt layer 2 under the ground to be driven into a hole 3 in the ground, so as to drain the underground water by pumping water up with a pump 18 through the inner part 30 of the inner pipe 15.例文帳に追加

有孔管１１を地下の砂層１の高さに位置付け、無孔管１２を地下のシルト層２の高さに位置付けて地中の孔３に打ち込み、ポンプ１８で内管１５の内部３０から揚水して、地下水を排水する。 - 特許庁