Three reference planes(基准平面) are used for the fuselage,they are:
A.Body station; B.Body buttock line; C.Body waterline; D.A+B+C;正确答案D
Three reference planes(基准平面) are used for the fuselage,they are:
A.Body station; B.Body buttock line; C.Body waterline; D.A+B+C;正确答案D