The device is manually operated, using a simple handle.

这个装置利用一个简单的手柄，可以用手操作。

《柯林斯英汉双解大词典》

That system does use batteries for the controls, but it can also be operated manually.

该系统能够用电池组控制，也能够手动操作。

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San Francisco remains the only place on the planet with a true, manually operated cable-car system serving the public.

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He tried a Verano, he says, but rejected it because the seat recliner was a manually operated, Chevy-style handle, not a smooth power device.

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The level-crossing nearby is operated manually.

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