| 单词 | timer |
| 释义 | timer /tuy"meuhr/, n. 1. a person or thing that times. 2. a person who measures or records time. 3. a device for indicating or measuring elapsed time, as a stopwatch. 4. a device for controlling machinery, appliances, or the like, in a specified way at a predetermined time: Please put the roast in the oven and set the timer to cook it for two hours. 5. (in an internal-combustion engine) a set of points actuated by a cam, which causes the spark for igniting the charge at the instant required. [1490-1500; TIME + -ER1] |
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