A thin layer of dust covered everything.
所有的物品上都积了薄薄的一层灰尘。
Teeth have a hard surface layer called enamel.
牙齿有一层叫做釉质的坚硬表层。
Everything was covered with a thick layer of dust.
所有的东西都覆盖着厚厚的一层灰尘。
The paintings were concealed beneath a thick layer of plaster.
那些画被隐藏在厚厚的灰泥层下面。
I could see a thick layer of dust on the stairs.
我能看见楼梯上厚厚的一层灰尘。
The baby whale develops a thick layer of blubber to protect it from the cold sea.
幼鲸长出一层厚脂肪以抵御冰冷的海水。
This treatment involves scrubbing off the top layer of dead skin.
这种治疗需要把死皮的表层除去。
The ozone layer screens out dangerous rays from the sun.
臭氧层能遮挡住来自太阳的有害射线。
It is widely known that CFCs can damage the ozone layer.
众所周知氯氟烃会破坏臭氧层。
They will press for international action to safeguard the ozone layer.
他们将竭力要求国际行动来保护臭氧层。
The top layer of skin has to be grafted onto the burns.
表层皮肤必须移植到烧伤处。
Ozone forms a protective layer between 12 and 30 miles above the Earth's surface.
臭氧在距地球表面12至30英里的地方形成一个保护层。
Beneath the soil lies a layer of bedrock.
土壤下面有一层基岩。
They found a unique layer of sediment worldwide.
他们在世界各地发现了一层独特的沉积物。
A thin layer of ice formed over the lake.
湖面上凝结了一层薄冰。
A liquid layer forms at the base of the glacier.
在冰川的底部形成了一层液体。
This seam of coal reposes on a layer of clay.
这个煤层处于一层黏土岩之上。
After the wind, there was a layer of dust on the desk.
大风过后，桌上落了一层灰。
Space probes show a body covered with a thick layer of ice.
太空探测器显示了一个覆盖着一层厚厚的冰的物体。
In winter, the ground would be carpeted with a thick layer of snow.
冬天，地面上铺满了一层厚厚的雪。
He wrapped one layer of the plastic around the card and tried again.
他在卡片上裹了一层塑料，然后又试了一次。
In the angiosperm the seeds are wrapped in an additional layer of covering.
被子植物的种子被另一层覆盖物包裹着。
The top layer should now point down to the layer beneath.
顶部图层应当指向下面的图层。
Between the last layer of Cretaceous rock and the first layer of Cenozoic rock, there is often a thin layer of clay.
在最后一层白垩纪岩石和第一层新生代岩石之间，常常有一层薄薄的粘土。
Soon layer of oceanic ooze began to accumulate above the old hard layer.
很快，海洋软泥层开始在原先的硬地层上面堆积起来。
This layer of water reduces friction.
这层水减少了摩擦。
Beneath this active layer is a second layer called "permafrost", which is frozen all year around, and is impermeable to water.
在这一活跃层下面，是被称为“多年冻土”的第二层，终年冻结，不透水。
Varnish is the glossy protective layer applied to wooden furniture and other surfaces.
清漆是用于木质家具和其他表面的光滑的保护层。
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