名词短语
中文翻译：手动操作
同义词：
['manual control', 'manual process', 'manual work例句：1. This machine operates manually', 'requiring no electricity.（这台机器是手动操作的，不需要电力。）2. The manual operation of the device is essential for safety.（设备手动操作对于安全至关重要。）3. Manual operations are slower but more precise than automated ones.（手动操作比自动化操作慢但更精确。）']
例句：
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1. This machine operates manually, requiring no electricity.
这台机器是手动操作的，不需要电力。
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2. The manual operation of the device is essential for safety.
设备手动操作对于安全至关重要。
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3. Manual operations are slower but more precise than automated ones.
手动操作比自动化操作慢但更精确。