在正常操作条件下，节气门体总成必须满足本文所列的所有性能要求。
The Throttle body assembly shall meet all performance requirements listed herein at the normal operating conditions.
感应器的阈值为确定感应器是否在正常、非关键、关键或是严重条件下操作指定了范围（最小和最大值）。
The sensor's threshold values specify the ranges (min and max values) for determining whether the sensor is operating under normal, non-critical, critical or fatal conditions.
大多数情况下，此软件包并不是操作系统正常工作的必要条件。
This software package is not a requirement for your operating system to work properly.
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