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natural system
biotaxy. 自然[分类]法 (systema naturalis)
desert. 自然系统
tech. 自然分类系统; 自然分类法; 排水系统; 天然体系; 分类系统
natural system: 79 phrases in 24 subjects
Animal husbandry1
Aviation1
China2
Desert science4
Earth sciences8
Ecology4
Electronics4
Engineering geology1
Environment1
Explosives and Explosive Ordnance Disposal1
General1
Hydraulics2
Hydroelectric power stations1
Information technology5
International trade1
Nautical1
Navigation3
Oil / petroleum5
Space3
Technology21
Telecommunications2
Textile industry4
United Nations2
Wind Energy1