The first group can tell from 24 post-holes, foot tracks, and other clear signs that the majority are made by humans.
第一类人凭着田里的坑洞、脚印足迹和其他明显痕迹就能判断大部分怪圈都是人为的。
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
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.