gradientern.倾斜测定器gradientn.倾斜度；坡度；梯度gradient elution unit梯度提洗器gradient of downgrade坡度gradient drift current梯度漂移电流gradient of permeation渗透比降gradient mixing device梯度混合装置gradient wind equation梯度风公式gradient sedimentation梯度沉降gradient edge operator[计] 梯度边界算子gradient domain method梯度域方法Gradient Recalled Echo(MRI)快速梯度回波序列之一, (Siemens公司开发)