| 单词 | pulse-counting |
| 释义 | > as lemmaspulse-counting pulse-counting adj. ΚΠ 1947 Jrnl. Optical Soc. Amer. 37 430/1 The lower limit of usable voltage or gain in the photomultiplier tube in a pulse-counting application is reached when the photo~electronic output pulse becomes reduced. 1992 S. P. Maran Astron. & Astrophysics Encycl. 311/2 Designed to operate primarily in the ultraviolet, it uses a pulse-counting television system for high sensitivity. < as lemmas |
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