1·The slight grade to the north exposes their basements slightly.
北部缓坡微露出他们的地下室。
2·What generally distinguishes "a" grade wood from "AA" grade is the presence of some slight color in the wood and some variation in the uniformity of texture.
级和AA级木材的区别在于：A级木材存在一些颜色的轻微变化，木材结构的均匀度有一些变化。
3·The coincident rates of the PTA level with the hepatohistological grading were above 70% in severe hepatitis and CHB with the slight and severe grades, but only 39.3% in CHB with the moderate grade.
PTA下降程度与肝组织学分度符合率在重型肝炎组及轻、重度慢性乙肝组达70 %以上，中度慢性乙肝组仅3 9 3 %。