误差 wùchā difference
difference; error; inaccuracy
怎么记住“误差”: 误 mistake + 差 differ from = difference.
汉字
用法
- Margin of error / discrepancy between measured and true value - 允许的误差 (yǔnxǔ de wùchā) allowable error; 误差范围 (wùchā fànwéi) margin of error.
- Technical/statistical term. Note 差 reads chā here. It's inherent inaccuracy, not a blunder (错误 cuòwù).
- Common in measurement, science, engineering, polling.