In the so-called "spy Cell", the children can occupy a high observation post and survey the scene through observation slits, spy holes, mirrors and magnifying glasses.
在所谓的“间谍细胞”，孩子们可以占用高的观察和调查后，通过观察缝隙，间谍洞现场，镜子和放大镜。
2
In this system, the image of the holes on the spinneret were zoomed in and stored for post-processing.
该系统通过显微镜对喷丝孔进行放大成像并采集保存。
3
Fix the installation holes on the front end of the slider rail to the square holes on the front post of the rack with screws and cage nuts shipped with the slider rails.