double system recording 中文意思是什麼
double system recording
解釋
雙系統錄音-
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。 -
Ariticle 9 the double - entry bookkeeping system should be used for recording all accounting transations
第九條企業的會計記賬採用借貸記賬法。
分享友人