A.230mA~330mA B.272mA~292mA C.280mA~330mA D.380mA~580mA
A.1.5mm B.2.5mm C.3mm D.3.5mm
A.推峰作業(yè)開始 B.信號顯示變換 C.開放后退信號 D.信號由開放轉(zhuǎn)為關(guān)閉