a mechanical drawing
网络释义
... Mechanical Drawing Practice 机械制图实习 A Mechanical Drawing 一种机械图纸 Robot Design Mechanical Drawing 机器人设计机械图 ...
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原声例句
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now I'm really fantastic at drawing this mechanical device, but you can imagine that dropping a weight can cause a paddle wheel to turn.
机械装置的时候,我真的很着迷，你可以想象,当重物掉落的时候会带动桨轮旋转。
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$firstVoiceSent
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