1. Earthquake pitted the surface of the earth.
   地震使地面出现了凹陷。
2. The wind rippled the surface of the cornfield.
   微风吹过麦田, 泛起一片麦浪。
3. The scientists mapped the surface of the moon.
   科学家绘制了月球表面的地图。
4. A light wind disturbed the surface of the pond.
   微风使池塘水面泛起涟漪。
5. A gentle wind disturbed the surface of the water.
   微风拂动水面。
6. Steam is condensed to water when it touches a cold surface.
   水蒸汽触及冷的表面即凝结成水。
7. The paperweight had fallen onto the desk, badly marking the surface.
   镇纸掉到了桌上，在桌面砸出了深深的印痕。
8. Small meteorites have left impact craters all over the planet’s surface.
   这个行星的表面布满了小块陨石留下的撞击坑。
9. The boy disturbed the tranquil surface of the pond with a stick.
   那男孩用棍子打破了平静的池面。
10. The table had a shiny surface, but underneath it was dull and rough.
    这张桌子的表面很光亮，可是它的底下却又乌又粗糙。
11. Scrape the old paint off, sand the surface down, and then varnish over it.
    刮掉旧漆, 用砂纸将表面打磨光, 然后涂漆。
12. Forgings to be delivered unmachined shall have a smooth surface appropriate to the production process.
    没有经过机加工的锻件必须有光滑的表面，使之使用于生产加工。
13. Explain how the air temperature changes from the earth's surface to the lower thermosphere?
    如何从地球表面到低的热气层来改变大气的温度?
14. A high-speed burr was used to decorticate the surface of C2 lamina and C1 arch.
    使用高速球钻在C2椎板和C1椎弓表面去皮质。
15. This may be especially suitable in providing a nonslip surface on ramps in cold climates.
    这可能特别适用于在寒冷气候区为坡道提供一种防滑表面处理。
16. N,N-dimethylformarnide surfactant methanol solution was developed to functionalize the surface of multi-waled carbon nanotubes (MWNTs).
    摘要用二甲基甲酰胺表面活性剂来超声分散多壁碳纳米管，制备成碳纳米管增强的环氧树脂基聚合物。
17. The lake has a horizontal surface.
    湖面呈水平状。
18. The wooden surface had a beautiful shine.
    那木质的表面有美丽的光泽。
19. The journal rubs against the bearing surface.
    轴颈在轴承面上摩擦。
20. Dust on the surface brushes off easily.
    表面的灰尘容易掸掉。

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