NWC

It is found that the dominant mechanism of material removal of precision grinding for nWC/ 12Co coatings is mainly the inelastic deformation including plastic deformation with a certain amount of pulverization, and less removal from material brittle fracture.

结果表明：在大多数磨削条件下，nWC/12Co磨削的材料去除机理主要是非弹性变形方式，即以塑性变形为主，伴随一定的材料粉末化，材料较少以脆性碎裂去除。

Assessment on the Explanatory Level to Weather Element of NWC Model Products

国家模式产品对天气要素释用能力的评估

There are considerable differences in the summer column precipitable water over NC and NWC in dry and wet years ( months).

两地区干、湿年（月）间气柱可降水量差别明显；

Lastly, the Precipitable Water ( PV) and vapor transport flux during the great drought affair in the east of NWC in 1990s' have been analyzed and compared with what during wet years.

再次，对上世纪90年代西北地区重大干旱事件期间大气可降水量、水汽输送等进行了分析，并与典型湿年进行对比，从大气水分特征的角度探讨了这次重大干旱事件的可能形成原因。

The vapour flux in influence regions of NWC of East Asian summer monsoon is reached to be significant increasing in the strong summer monsoon year, the precipitation in this region is abundant, it is opposite in weak summer monsoon year.

强夏季风年，到达东亚夏季风西北影响区的水汽通量显著增加，该区降水偏多，弱夏季风年则反之。

The Northwest China ( NWC) drought region is a part of the middle Asian drought region, it is a important study region of the geography, life and environment sciences.

西北干旱区是中亚干旱区的主要组成部分，是研究地理科学、生命科学及环境科学的热点地区。