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罗泰克斯定影液控制系统—Ag7309(见图1),是由美国工业用银公司设计生产的。该系统主要由两部分组成:一部分是L.N.P.(线性零点电位测定)自动控制器,另一部分是高效电解提银装置。
Lotte fixing solution control system - Ag7309 (see Figure 1), was designed and manufactured by American Industrial Silver Company. The system is mainly composed of two parts: one is the L.N.P. (linear zero point potentiometer) automatic controller, the other part is the Electrolytic silver lifting device.