grading
等級,分階段,坡度緩和
Grade, v. t. [imp. & p. p. Graded; p. pr. & vb. n. Grading.]
1. To arrange in order, steps, or degrees, according to size, quality, rank, etc.
2. To reduce to a level, or to an evenly progressive ascent, as the line of a canal or road.
3. Stock Breeding To cross with some better breed; to improve the blood of.
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Grad·ing n. The act or method of arranging in or by grade, or of bringing, as the surface of land or a road, to the desired level or grade.
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grading
n 1: the act of arranging in a graduated series [syn: scaling]
2: changing the ground level to a smooth horizontal or gently
sloping surface [syn: leveling]
3: evaluation of performance by assigning a grade or score;
"what he disliked about teaching was all the grading he
had to do" [syn: marking, scoring]