大家在查： gradient of velocity gradual change gradually changing color Graduate School of Harbin Institute of T Graduate School of Hohai University gradient field gradient elution gradient-centrifugation Graded crushed stone grade of side slope

gradient of electrochemical potential

土壤学名词(转载) ... 06.068 电化学势梯度 gradient of electrochemical potential 06.069 养分耗竭 nutrient depletion ...