retractable launcher meaning in Hindi

• स्थिति परिवर्तक प्रमोचित्र • स्थिति परिवर्तक मोचित्र

retractable: आकुंचनशील
launcher: नाव प्रक्षेपक

Stealth aircraft such as the Chengdu J-20 use retractable launchers which moves out on rails allowing the weapons bay to be closed while still hanging outside.