3370| 10
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凸輪控制定時(shí)脫嚙的連桿-齒輪機(jī)構(gòu) |
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點(diǎn)評
3#樓應(yīng)該是正解,,有上下兩個(gè)齒條,。一個(gè)齒條推動,,一個(gè)齒條脫離。我是擔(dān)心脫離之后會撞,。
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