The frequency sense element is a hardcore in the eddy street flowmeter.
在涡街流量计中,频率感测元件是其核心部件,旋涡上举力的大小直接影响到感测元件的灵敏度。
This paper describes systematically the practical use ot photometric elements in photography and their advancements, emphasizing that following the progress of science and technology, newer and newer photometric elements and photometric devices will emerge in the future.
本文系统阐述了测光元件在摄影测光系统中的应用与发展,并指出随着科技进步,将不断有新的测光元件和光探测器的诞生。
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