14C同化物分配
14C assimilate distribution
JOIDES沈积物分类
JOIDES sediment classification
城市建筑物分类
city building classification
氮氧化物分析方法
analysis of nitrogen oxides
氮氧化物化学发光光谱
oxynitride chemiluminescence spectrum
地物分类
terrain classification
Classification
classification of things on ground