A.報(bào)警,故障或離線,正常 B.離線或故障,報(bào)警,正常 C.正常,離線或故障,報(bào)警 D.正常,故障或離線,報(bào)警
A.30S B.60S C.90S
A.網(wǎng)絡(luò)系統(tǒng) B.行程開關(guān) C.氣路系統(tǒng)