Gradl格拉德尔gradabbr.毕业生；校友（=graduate)grading coils分段绕制线圈grading plant分级装置,分级厂grading rules分级标准,分级规则grading roller分级辊grading shield分段屏蔽,电火花屏蔽grads-design梯度设计graduating nut递动杆螺母grading timber木材按质分类grading system等级制Grading result分等结果