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来源:雅诚德英语网
A major invention was the adjustable strut that could precisely set the depth of the plow by altering the distance of the blade and the beam.
一个重大的发明是可调节的支柱,通过改变刀板与横梁的距离来精确地设置犁的深度。
A major invention was the adjustable strut that could precisely set the depth of the plow by altering the distance of the blade and the beam.
一个重大的发明是可调节的支柱,通过改变刀板与横梁的距离来精确地设置犁的深度。