| 释义 |
〔target〕A structure in a television camera tube with a storage surface that is scanned by an electron beam to generate a signal output current similar to the charge-density pattern stored on the surface.靶电极：电视摄像管中的一种结构，其记忆表面被一束电子流扫描后能产生与该表面上存储的电荷密度方式相似的一束信号并输出电流〔cathode〕The positively charged terminal of a primary cell or a storage battery that is supplying current.还原极：正在输出电流的原电池或蓄电池的阴极 |