The air cycle machine consists of a turbine wheel and a compressor wheel mounted on a ______ (共同的)shaft.
A.common;
B.single;
C.separate;
D.;coaxial
正确答案是A
The air cycle machine consists of a turbine wheel and a compressor wheel mounted on a ______ (共同的)shaft.
A.common;
B.single;
C.separate;
D.;coaxial
正确答案是A