russian reindeer husbandry was distributed widely in the asian and european frigid zone and sub-frigid zone, there are more than 20 nations engaging in reindeer husbandry.
俄罗斯驯鹿饲养业广泛分布于亚欧大陆的寒带、亚寒带地区,有20多个民族从事驯鹿饲养业。
most of the country in the temperate zone, although geographically the country stretches from the tropical and subtropical zones in the south to the frigid zone in the north.
中国大部分地区处于温带和亚热带,南部部分地区处于热带,北部部分地区则靠近寒带。
the mechanical model of cutting side slope stability in frigid zone is put forward according to the research above.
在此基础上构建了寒区路堑土质边坡稳定性的力学模型。
the effect of admixture on impermeability of concrete in frigid zone was studied the results of the test meet the requirements of design and construction.