counter bore 中文意思是什麼

counter bore 解釋
沉孔
  • counter : n 1 計算者；計算器；計數器。2 籌碼，號碼；偽幣；劣幣；〈蔑稱〉錢；棋子；湊數的人，玩具似的人。3 ...
  • bore : n 1 膛；膛腔；孔，孔腔；眼，炮眼；槍膛，炮膛。2 膛徑，孔徑，口徑，內徑。3 鉆[擴]孔器，錐，膛頭。v...
  1. Therefore, the three fundamentals required to obtain high precise measurements are : 1 ) frequency stability and frequency difference stability of the double - frequency laser source as well as the stable equivalent length of bore ; 2 ) the measuring beam and the reference beam are placed very co - axially ; 3 ) capability of recording the sub - division of the period of phase change and a reversible counter system

    因而干涉儀系統達到高精度的基礎是：頻率及頻差穩定的雙頻激光源、穩定的等效腔長；測量光與參考光合光後有很高同軸度的光路結構；能可靠記錄相位差變化周期數的細分及可逆計數系統三部分。
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