曲杠桿 的英文怎麼說
中文拼音 [qūgānggǎn]
曲杠桿
英文
bell crank-
The massive walking - beam rose and fell above the deck ; at one end a piston - rod worked up and down ; and at the other was a connecting - rod which, in changing the rectilinear motion to a circular one, was directly connected with the shaft of the paddles
甲板上露出一根很長的蒸汽機杠桿，兩頭一高一低地不停活動，這根杠桿的一端聯接著活塞柄，另一頭聯著輪機上的曲軸，這樣就把杠桿的直線推動力轉變為直接推動輪機的動力，從而使輪軸不停地旋轉起來。
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