microphone measuring standard

例句：

1. 1. The microphone was tested to ensure it met the required standards.
   麦克风被测试以确保符合所需标准。
2. 2. The microphone's performance was measured against industry-standards.
   麦克风的性能与行业标准进行了比较。
3. 3. The microphone's sensitivity was carefully measured to ensure optimal sound quality.
   麦克风的灵敏度被仔细测量以确保最佳的音质。