tim·er /ˈtaɪmɚ/
計時器,定時器
timer
失效計時器
timer
計時器
Tim·er n.
1. A timekeeper; especially, a watch by which small intervals of time can be measured; a kind of stop watch. It is used for timing the speed of horses, machinery, etc.
2. Internal-combustion Engines In electric ignition, an adjustable device for automatically timing the spark.
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timer
n 1: a timepiece that measures a time interval and signals its
end
2: (sports) an official who keeps track of the time elapsed
[syn: timekeeper]
3: a regulator that activates or deactivates a mechanism at set
times