The face shield was divided into three regions: orbital (O-region), Paraorbital (P-region) and Mask (M-region).
面罩由三个部分组成：遮盖眼睛、眼眶周围和面部区域。
2
Peaks in the region reach above 7,000 m and transportation is difficult and limited.
这个地区的山峰都高达7，000米以上，交通在这里困难而且受限制。
3
In order to overcome the disturbance of noises, a robust identification method of water quality model parameters namely trust region algorithm based on M-estimation is proposed.