subaqueous fan-fan deltaic depositional system
fan marder [= fan marker beacon]
the selection of primary air fan and secondary air fan
all transeretionic acid
supersonic or transonic axial compressor
the transonic compressor
Transonic
穿音速
跨声
跨音速
跨声速
跨声速的
准音速的
超声
穿音速流动
transonic airfoil design