单词：margin of error
margin of error的用法和样例：
例句
- There is no margin for error in our plan.我们的计划中不留有误差幅度。
- The margin of error was plus or minus three percentage points.误差幅度在三个百分点左右。
- safety margin安全系数,安全边缘,安全...
- margin of safety强度储备,安全系数...
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