名词
中文翻译：手算
同义词：
['manual calculation', 'manual computation']
例句：
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1.The engineer used a hand calculator to solve the problem quickly.
工程师使用手算器快速解决了这个问题。
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2. She taught her children how to do basic hand computations.
她教孩子们如何进行基本的手工计算。
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3.Hand computation is often more accurate than using a computer.
手工计算通常比使用电脑更准确。