polar air-mass是什么意思

用法例句

With the development of human society and improvement of abilities to explore the unknown world, nowadays environment pollution has become a global problem, even threatening the remote polar regions.

随着人类社会的发展及其对未知世界探索能力的提高,环境污染目前已演变成为全球性问题,即使是远离人类居住地的南北极地区也不能幸免。

Distribution of glacial microorganisms,advances in microbial diversity in polar region, sea iceberg,continental high mountains,and others were expatiated in this article,research methods,significances, outlook,and prospect were also introduced.

阐述了冰川微生物的分布,极地、海冰、大陆高山等地区冰川微生物多样性的研究进展,并介绍了研究方法、研究意义及前景展望。

Design and Implementation of the Chinese Polar Spatial Data of Surveying and Mapping Management System;

中国极地测绘空间数据管理系统的设计与实现

It is very important for most polar users to get the surveying and mapping spatial data information from various districts.

本文在对历次极地考察所获得的极地测绘空间数据进行整理、分类的基础上,参考国际标准化组织(ISO/TC211)元数据标准、美国联邦地理数据委员会(FGDC)的CSDGM以及中国可持续发展信息共享元数据标准,制定了能够描述中国极地测绘空间数据的元数据标准,基于此设计并实现了中国极地测绘空间数据元数据管理系统。

Chinese polar science database system is an open multi-database integration system with physical distribution and logical collection.

中国极地科学数据库系统是一个物理上分布、逻辑上集中、开放式多数据库集成的系统。

Oil pollution in polar ocean increases with the exploration and utilization of polar area.

随着南极考察活动的发展和北极地区的开发利用,极地海洋中的石油烃污染逐渐增多。