单词	sweep-second hand
释义	sweep-second hand noun sweep-sec·​ond hand ˈswēp-ˌse-kənd-  -kənt- : a hand marking seconds on a timepiece mounted concentrically with the other hands and read from the same dial as the minute hand Example Sentences Recent Examples on the Web When the push piece at 2:00 is activated, the split-second hand stops while the sweep-second hand continues running. Roberta Naas, Forbes, 7 Apr. 2021 When the crown is pressed, the center sweep-second hand and the split-seconds hand both begin running but are superimposed. Roberta Naas, Forbes, 7 Apr. 2021 Word History First Known Use 1937, in the meaning defined above
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