專業人員的要常用才能保持準確，而且每年要送機構矯正。DIY的愛好者買一個，長期不用，彈簧就不準了。

來源: dongbeiren56 於 2019-11-15 16:27:15 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.