Seat the telescope on the tripod.

镜安装在三脚架上。

Make sure the tripod is stable.

一定要三脚架放稳。

S-the telescope on the tripod.

镜安到三脚架上。

After inquired about the tripods in the Central Plains in the mid-seventeeth cetury, the Manchus took wiser tactics than that of the Mongols and Tuobaxianbei .

满族挥师入关,定鼎中原之后,采取了与拓跋鲜卑和蒙元统治者均有所不同,而更见高明的统治策略。