Gradenn.格拉登(音译名)
graden.等级;年级;成绩;斜坡v.分级;评分;渐次变化
graded preference relay接地选择继电器
grade of gypsum product石膏产品品位
graded density impactor密度梯度飞片
grade of film thickness膜厚级别
grade-layer composite梯度复合
grade crossing predictor道口信号预报器
grade-changing process换级过程
graded seal glass tubing递级封接玻璃管
graded index optic fiber集束性光导纤维
graded flow-block-up分级截流