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单词 micrometer
释义 micrometer
micrometer1
 /muy krom"i teuhr/,  n.  
  1. any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
  2. Also called mike, micrometer caliper. a precision instrument with a spindle moved by a finely threaded screw, for the measurement of thicknesses and short lengths, commonly used by machinists for turning shafts or boring holes.
 Also, esp. Brit., micrometre.
 [1660-70; MICRO- + -METER]
micrometer2
 /muy"kroh mee'teuhr/,  n.  
 micron (def. 1).
 [MICRO- + METER1]
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