depression in the surface 表面的凹陷
no change in the surface 表面无变化
in the surface 中表面
black stains in the surface 表面黑斑
pollution in the surface source 污染面源
The Lake Surface In January 一月的湖面
vertical in the Object surface 垂直于工件表面
The paint will cover any irregularity in the surface of the walls.
油漆会遮盖住墙壁上任何不平整的地方。
In this method of farming seeds and fertilizer are put into the soil through small cuts made in the surface of the ground.
在这种耕作方法中，种子和肥料是通过地面上的小切口进入土壤的。
Stress fractures, or tiny cracks in the surface of a bone, are serious running injuries that requires immediate treatment.
应力性骨折，或者在骨头表面上的微小裂缝，是严重的跑步受伤，并且需要立即治疗。
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