The cavity pyroelectric detector is usually used as the work norm to calibrate relative spectral responsivity of detectors because of its flat spectral responsivity in broad spectra range.
由于腔体热释电探测器在宽光谱范围内具有相对平坦的光谱响应度，因此经常被用作标定探测器相对光谱响应度的工作基准。
Jacket ball valves shall be able to work norm ally under all field conditions specified in the technical specifications.
夹套球阀应能在本技术规格书规定的所有现场条件下正常运行。
Jacket ball valves shall be able to work norm ally under all field conditions specified in the technical specifications.
夹套球阀应能在本技术规格书规定的所有现场条件下正常运行。
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