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 tower发射塔,垂直发射装置Launching truck发射车launching angle发射角,掷角launching stand发射台launch guidance发射段制导,起飞段制导launching winch发射绞车launch a debate展开论战launching system起动系统launching cradle腾空架Launching origin发射原点