percent of reading for pulse
...十八点一英寸 Accuracy +/- 3 mmHg for pressure; +/- 5 percent of reading for pulse精度+ / -3毫米汞柱压力; + / - 5％的脉冲 Backup power source are 4 AAA alkaline batteries (included)备用电源是4 AAA碱性电池 ..
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percent of reading for pulse
脉搏读数百分比
以上为机器翻译结果，长、整句建议使用 人工翻译 。