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546715894 發(fā)表于 2017-7-24 19:57 調(diào)整方法如下: 1、在正確安裝機(jī)針的前提下,機(jī)針自上而下運(yùn)動(dòng)、旋梭旋轉(zhuǎn)。當(dāng)機(jī)針降到底位置,旋梭的梭 ...
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