短語詞組短語Pneumatic ejection structure 氣動頂出pneumatic membrane structure 充氣薄膜結(jié)構(gòu)pneumatic c structure 充氣結(jié)構(gòu)pneumatic arch structure 充氣拱結(jié)構(gòu)Seal -propelled pneumatic structure 氣動助推密封結(jié)構(gòu) 返回 pneumatic structure