求翻译：为了提高机床的工作效率，机床采用两边孔同时加工，因此需要在加工过程中需要工件不动，镗刀在做主运动的情况下同时做进给运动。是什么意思？

Order to improve the work efficiency of machine tools, machine tools, processing of both sides of the hole, the workpiece in the process need not move the boring tool movement shots at the same time to do the feed movement.

In order to increase productivity of the machine, the machine uses two side holes parallel processing, which needs to be in the process the workpiece does not need to be boring, masters in the context of a campaign to make the movement.

In order to enhance the engine bed the working efficiency, the engine bed uses two side holes also to process, therefore needs to need the work piece in the processing process to be motionless, the boring cutter in takes responsibility in the movement situation simultaneously to make the feed motion

In order to improve the efficiency of machine tool, machine tool with holes on both sides at the same time processing, therefore need to be required in the manufacturing process the workpiece does not move, bore up movement while feeding in the context of sports.

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