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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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更新时间:2024/9/24 11:29:29