A.從發(fā)令開(kāi)始至船對(duì)地 B.從發(fā)令開(kāi)始至船對(duì)水 C.螺旋槳開(kāi)始倒轉(zhuǎn)至船對(duì)地 D.螺旋槳開(kāi)始倒轉(zhuǎn)至船對(duì)水
A.船舶在航進(jìn)中從開(kāi)出倒車(chē)到停止對(duì)水移動(dòng)的對(duì)水航行距離和時(shí)間 B.船舶在航進(jìn)中從開(kāi)出倒車(chē),直至余速降至2節(jié)時(shí)的對(duì)水航進(jìn)距離和所需時(shí)間 C.船舶在航進(jìn)中從下令倒車(chē)到停止對(duì)水移動(dòng)的對(duì)水航行距離和時(shí)間 D.船舶在航進(jìn)中從下令倒車(chē),直至對(duì)水余速降至2節(jié)時(shí)的對(duì)水航進(jìn)距離和所需時(shí)間
A.下令后初期下降最快 B.主機(jī)倒車(chē)轉(zhuǎn)速達(dá)到最大時(shí)下降快 C.末期下降慢 D.各個(gè)時(shí)期一致