A digital adder needs more circuitry, and thus more power, to operate, but it does not require such high accuracy.
数字加法器需要更多的电路、因而需要更大的功率才能工作，但它不需要这么高的准确性。
A digital adder needs more circuitry, and thus more power, to operate, but it does not require such high accuracy.
数字加法器需要更多的电路、因而需要更大的功率才能工作，但它不需要这么高的准确性。
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