A.隨機(jī)預(yù)報(bào)B.中長期預(yù)報(bào)C.短期預(yù)報(bào)D.臨災(zāi)預(yù)報(bào)
A.定人B.定時(shí)C.定設(shè)備D.定地點(diǎn)
A.鉆機(jī)高度B.轉(zhuǎn)速C.壓力D.鉆機(jī)結(jié)構(gòu)