Cadastre management is the basic work in land management work system.地籍管理是土地管理的基础技术性工作.As one of the mainly research objects cadastre management, the house has the obvious geometry features.房屋作为地籍管理中最主要的研究对象之一, 具有明显的几何特征...
NOTES ON BEROSUS LEACH IN CHINA WITH FOUR NEW SPECIES ( COLEOPTERA: HYDROPILIDAE )我国刺鞘牙甲属四新种 ( 鞘翅目: 牙甲科 )Liquid water can leach soluble materials from the interface.液态水能够从界面溶解出可溶性物质.Nitrates leach from the soil into rive...
大气中含有70%以上的氮气.The atmosphere consist of more than 70 % of nitrogen.这只是对威尔逊氮气云室的一种改进.It was an adaptation of Wilson's cloud chamber, filled with nitrogen gas.采气管得用氮气吹扫.Sample gas tubes are flushed with nitrogen....