【正文】
A u0 B C (d) ? A u0 B C pg??(a) B ? A u0 C (c) C ? A u0 B (b) This highly simplified animation shows how air flows as waves in an intake system. Note the green valve opening and closing. 容器旁管非定常出流 0)2(2???????? upgzstu ?由 00到 11點(diǎn)積分有 p0 h x l 0 0 1 1 ? ????????10 222000211ssupgzupgzdstu??