金属: metals genus度: surmise; estimate梯度: gradient; grad金属度: metallicity度梯度凝泳: temperature gradient gel electrophoresis对比度梯度: contrast gradient负温度梯度: negative temperature gradient高度梯度: altitudinal gradient黑度梯度: density gradient静密度梯度: static density gradient零温度梯度: zero temperature gradient慢度梯度: slowness gradient密度梯度: de ity gradient; density gradients密度梯度法: density gradient menthod密度梯度管: density gradient column; density gradient tube密度梯度柱: density gradient column浓度梯度: cg concentration gradient; concentration gradiant; concentrationgradient; concentraton gradient; density gradient强度梯度: intensity gradient深度梯度: concentration gradient; depth gradient湿度梯度: moist gradient; moisture gradient速度梯度: gradient of velocity; gradient velocity; velocity gradient速度梯度区: velocity gradient zones温度梯度: gradient of temperature; gradient, temperature; moisture gradient; temp grad; temperature grade; temperature gradiant; temperature gradient; temperature lapse rate; temperature slope; temperaturegradient; thermal gradient; thermograde; tone'smal gradient温度梯度法: temperature gradient method温度梯度炉: gradient furnace