tim·er /ˈtaɪmɚ/
 計時器,定時器


 timer
 失效計時器


 timer
 計時裝置 TM


 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