In electronics, the unidirectional, pinhead electron stream generated by the cathode gun in a CRT.
在电子技术中，由阴极射线管(CRT)中电子枪所产生的、单向细电子流。
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This paper reviews the influence of air contaminants, i. e., impurities in air stream of cathode, on the performance of proton exchange membrane of fuel cells (PEMFC).