求翻译：启动应在空载工况下进行，逐渐增至工作转速，空载跑合不少于20分钟，在逐渐增压至工作压力，运转1-2小时，观察马达运转是否正常。是什么意思？

Should start in the no-load conditions gradually increased speed, no load running - not less than 20 minutes, gradually pressurized to working pressure, running for 1-2 hours, observe the motor is functioning properly.

Should be up in no-load conditions, gradually increase the speed to run with no load, no less than 20 minutes, gradually boost to operating pressure, for 1 - 2 hours, the motor is running correctly.

The start should carry on under the idling operating mode, increases to the work rotational speed gradually, the idling runs gathers many in 20 minutes, in gradually turbo-charged to working pressure, revolves for 1-2 hour, observes the motor to revolve whether normally.

Launch should take place under no load condition, and gradually increase to speed, no-load running collection of no less than 20 minutes, gradually pressurized to working pressure, running 1-2 hours, see whether the motor is running normally.

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