keystone

The premise of designing and creatin g Chongqing's tourism image is to rec ognize its advantages and keystone o f devel-opment.

设计和塑旅游象的,找出自己的优势和发展点。

Also, the possibility of keystoning using the microscope stage for motion and a glass needle fixed to the microscope head should be evaluated.

同样，可能采用的楔取所用到的显微镜平台（运动以及安置在显微镜头上的玻璃针）也将被评估。