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简单机械
Encyclopedia
理学
静力学
释
simple machinery
简单机械
人类在劳动实践中最早创造的结构简单的机械,包括杠杆、滑轮、斜面、螺旋、尖劈等。
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Fulton gap
Fulton Report
Fulton Speech
Fulu
fulvene
fulvic acid
Fum al Samakah
Fu Maoji
fumarase
fumaric acid
Fu Mausoleum of Shenyang
F-umber, FNO
Fumena Treaty
fume-resisting machine
fumero
Fumian Qu
Fumian Zhen
fumigant
fumigate and washing
fumigate therapy
fumigating insecticides
fumigation experimentation of air pollution
fumigation room
fumigation-washing method
Fumiko Samejima
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