A.突加或突減20% B.突減50% C.突加或突減50% D.突加50%
A.±20%/3s B.±15%/1.5s C.±30%/1s D.±25%/2s
A.只考察其靜態(tài)指標(biāo)即可 B.只考察其電壓恢復(fù)時(shí)間即可 C.只考察其動(dòng)態(tài)指標(biāo)即可 D.動(dòng)態(tài)、靜態(tài)指標(biāo)均要滿足《鋼質(zhì)海船入級(jí)規(guī)范》的要求