Although there are many superiorities in isometric profile connection, machining isometric profile shaft annoys us.
等距型面轴联结具有很多优越性，然而对等距型面轴的加工一直困扰着我们。
Although there are many superiorities in isometric profile connection, machining isometric profile shaft annoys us.
等距型面轴联结具有很多优越性，然而对等距型面轴的加工一直困扰着我们。
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