gradelyadj.极好的(漂亮的；恰当的；真正的)graden.等级；年级；成绩；斜坡v.分级；评分；渐次变化Grades of hail shooting disaster降雹成灾等级graded ceramic-metal composite梯度陶瓷金属复合材料graded-impedance flier-plate梯度飞片graded broken stone construction级配碎石施工grade-time step-voltage test按时升压试验grade-of-service calculation服务等级计算程序graded-time step-voltage test按时升压试验graded and multilayered structure梯度多层结构grade of inhomogeneity of carbide碳化物不均匀性级别graded non-homogeneous material梯度非均匀材料