【单选题】已知Y型和Δ型电阻电路等效,若Y型电路中R1=R2=R3=3Ω,则Δ型电路中的R12为( )。
【简答题】473000河南南阳市八一路272号特钢公司
【单选题】( )不适合将复杂加工程序输入到数控装置
【多选题】上文所提出假说大致是从以下几个方面进行推论的?
【单选题】The Ship Security Alert System information transmitted including ________.
【单选题】( )不适合将复杂加工程序输入到数控装置。
【单选题】When turning a ship in restricted space with a strong wind, it is normally best to ______
A.
go ahead on both engines with the rudder hard to one side, if on a twin-screw vessel
B.
back down with the rudder hard to one side, if on a single-screw vessel
C.
take advantage of the tendency to back to port, if on a twin-screw vessel
D.
turn so that the tendency to back into the wind can be used, if on a single-screw vessel