在通用车床上加工一个复杂的工件时，在更换和调整加工时所用的一些刀具上要花费很多时间。
When machining a complex workpiece on a general-purpose lathe, a great deal of time is spent changing and adjusting the several tools that are needed to complete the work.
在通用车床上加工一个复杂的工件时，在更换和调整加工时所用的一些刀具上要花费很多时间。
When machining a complex workpiece on a general-purpose lathe, a great deal of time is spent changing and adjusting the several tools that are needed to complete the work.
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