They test, resample, and retest equipment or systems until an "acceptable" residue level is attained.

他们要检测，重新取样，重新检测设备或系统，直到达到被认可的残留物级别。

youdao

They test, resample, and retest equipment or systems until an "acceptable" residue level is attained.

他们要检测，重新取样，重新检测设备或系统，直到达到被认可的残留物级别。

youdao