First of all, you know, they can launch missiles from mobile launchers.

首先，朝鲜可以用移动发射台发射导弹。

The video also showed a missile being fired from a mobile launcher.

视频中还显示，一枚导弹从移动发射平台发射升空。

Earlier there were reports from South Korea that the North had loaded two medium-range missiles onto mobile launchers.

早些时候，来自韩国的报道称，朝鲜已经将两枚中程导弹安装在自行式发射装置上了。

The U.S. space agency says it encountered an issue with a panel on the mobile launcher that controls the core stage vent valve.

美国航天局表示，移动发射装置上控制核心级排气阀的面板出现了问题。

While crawling up the 5% grade to the launch location, the crawler uses a ladder guiding system and a leveling device to maintain the mobile launcher platform level with 10 minutes of arc.

当爬行5%坡度到达发射位置时，履带车利用梯子引导系统和调平装置以10分钟弧度保持移动发射器平台水平。