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 girder曳进吊梁机launching-tube水雷发射管launching region发射区launch direction发射方向launch stability发射稳定性launch condition注入条件launch simulator发射模拟器launching clause船舶下水保险条款Launch Zone Flag发射区标志旗launch pad tower发射塔