词汇	active muffler
释义	active muffler 有源消声器
随便看	pocket sorting Pockets,Periodontal pocket sphygmomanometer pocket spittoon pocket split pocket spring pocket type ionization chamber pocket type plate pocket type separator pocket-sized pocket-sized color television set pocket-sized computer pocket-sized device pocket-sized dictating machine pocket-sized digital organizer Pocket-sized mushroom pocket-sized radiation dosimeter pocket-sized seismograph pocket sized thickness gage pocket sized thickness gauge pocket-sized tube cutter pocket square pocket-square pocket squares pocket stand