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隨便扯扯啥是超前,啥是滯后 |
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點(diǎn)評(píng)
我是做三角帶的,三角帶的結(jié)構(gòu)你應(yīng)該了解吧,它里面的骨架層就是一列排列整齊的線繩,為了確保帶動(dòng)態(tài)運(yùn)動(dòng)時(shí),每根繩受到的力一致,就是做帶時(shí)要確保帶上的線繩每根松緊度一致
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