When the acceleration period has terminated, the switch means is controlled by a PWM pulse of the duty ratio in accordance with the speed instruction data, there by driving the DC motor.

在该加速期间结束时，以占空比与速度指令数据对应的PW M脉冲来控制开关机构，从而驱动该直流马达。

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We gave it a second and third chance, each one accompanied by new warnings to avoid the power switch, but "don't touch" is an instruction better left for expensive china and hot burners than a children's camera.

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