door sill 中文意思是什麼

door sill 解釋
門檻；門坎
  • door : n. 1. 門，戶。2. 入口，門口；通道，門徑，門路，關口。3. 一戶，一家。4. 【船、機】蓋，口。adj. -ed 有門的。adj. -less 沒有門的。adv. -wards 向著房門。
  • sill : n. 1. 【建築】基石，基本；踏板；楣，門檻，窗臺。2. 【地質學；地理學】巖床，巖層，海底山脊；平巷底，礦山巷道的底面；底粱。3. 【機械工程】（車體底框的）梁。
  1. Injun joe s bowie - knife lay close by, its blade broken in two. the great foundation - beam of the door had been chipped and hacked through, with tedious labor ; useless labor, too, it was, for the native rock formed a sill outside it, and upon that stubborn material the knife had wrought no effect ; the only damage done was to the knife itself

    他死前拚命用刀砍過那門下面的大橫木，鑿穿了個缺口，可是這沒有用，外面的石頭天然地形成了一個門框，用刀砍這樣堅固的門框，簡直是雞蛋碰石頭，根本不起作用，相反刀倒被砍得不成形了。
  2. Standard rolling door uses gear brake motor to drive. track and sill is specified designed as structure of door ; frame. it is widely used in large stteel - structure building

    普通卷簾門採用專用卷門機驅動，導軌和底梁按照建築物門框的形式單獨設計，可廣泛應用於大型鋼結構建築物。
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