电梯变频驱动 VVVF drive ; Lift variable frequency drive

阶梯变量 [统计] ladder variable

阶梯变焦 Step Zoom

梯形畸变 keystone-type distortion ; [电子] keystone distortion ; trapezium distortion

变性梯度凝胶电泳 DGGE ; denaturing gradient gel electrophoresis ; denaturing gel gradient electrophoresis

梯度变化 change of gradient ; gradient change

梯度变异 cline ; character gradient ; gradient variation

阶梯跃变 step transition

交变梯度磁谱仪 alternate-gradient magnetic spectrometer