Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/e814ce195ec7623e3e35adfb8e240fac.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 retroengine例句_retroengine英汉例句_retroengine双解例句_2020年的事情英文词典
Retroengine's firing time must the accuracy control, the firing time differ 1 second, will cause the airship point of descent position difference kilometer. 制动发动机的点火时间必须精确控制，点火时间相差1秒钟，就会使飞船落点位置相差数公里。