| 单词 | tapper |
| 释义 | tapper tapper1 /tap"euhr/, n. 1. a person or thing that taps or strikes lightly. 2. a telegraph key. [1800-10; TAP1 + -ER1] tapper2 /tap"euhr/, n. 1. a person or thing that taps, as trees for the sap or juice, a blast furnace, cask, or other container for their contents, etc. 2. a person who cuts screw threads into the surface of a circular opening, as of a pipe, nut, etc. [bef. 1000; OE taeppere (not recorded in ME); see TAP2, -ER1] |
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