A. 监控单元 B. 整流器 C. 蓄电池 D. 直流配电
A. 1.0~1.5m,0.5~0.8m; B. 0.8~1.2m,0.5~0.8m; C. 0.6~1.0m,0.3~0.4m; D. 6~1.0m,0.5~0.6m。