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[¸í»ç] chronometer
µî±Þ :
SAT
´Ü¾î : chronometer
¶æ : Å©·Î³ë¹ÌÅÍ(°æµµ(ÌèÓø) ÃøÁ¤¿ë Á¤¹Ð ½Ã°è); ÃÊÁ¤¹Ð ½Ã°è
¶æ(¿µ¾î) : A portable timekeeper of the highest attainable precision