Terms for subject Ecology containing grade

English	Chinese
analytical reagent grade	分析纯
density grade	密度梯度
dual-grade fuzzy pattern recognition model	两级模糊模式识别模型
first-grade State protection	国家一级保护动物
grade I water	一类水
grade II water	二类水
grade III water	三类水
grade IV water	四类水
grade of crude ore	粗原矿品位
grade of grain	颗粒级配
grade of grain	颗粒等级
grade of mined ore	采矿品位
grade of soil and water loss	水土流失分级
grade of soil erosion intensity	侵蚀强度分级
grade tunnel	非承压水隧道
grade V water	五类水
grassland grade	草地级
grey relational grade analysis	灰色关联度分析
low grade ore	贫矿石
low grade ore	低级矿
multi-grade fuzzy pattern recognition model	多级模糊模式识别模型
nourish grade	营养级别
offensive odor grade	恶臭等级从0至6分为六个等级
relational grade	关联度
slope grade	坡度等级
sub-grade drainage	路基排水