1) dense sky cover
密集云层
2) The clouds are thickening.
云层正在密集。
3) The storm clouds gathered darkly.
阴云密集。
4) The black clouds concentrated into a dense mass.
乌云密集。
5) Miyun watershed
密云集水区
1.
Economic benefit dynamics of carbon sequestration by forest trees in Miyun watershed.;
密云集水区森林树木固C动态经济效益研究
2.
Study on Non-commercial Forest Compensation in Miyun Watershed;
密云集水区公益林补偿研究
6) alto stratus densus
浓密高层云
补充资料：云层
1.成层的云。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条