launchingn.发射；（船）下水动词launch的现在分词形式.launchv.发起；推出（新产品）；发射；使(船)下水n.发射；产品推介launching chamber助推器燃烧室Launching Warship发射舰launching program发射程序launch an inquiry开始调查Launch and Accept发射接收launching booster起动助推器,发射助推器launch a campaign发起一项活动Launch in Process发射正在进行launching trigger下水扳机launching circuit发射电路