3D printers are used to build an object with liquid plastic. They build the object layer by layer until it is complete.
3D打印机用液体塑料来建造物体，他们一层一层地建造着物体，直到完成。
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。
The top layer should now point down to the layer beneath.
顶部图层应当指向下面的图层。
If you peel birch bark in the winter, we call it "the winter bark", another layer, a tougher inner layer of the tree adheres to the bark, producing a stronger material.
如果你在冬天剥桦树皮，我们称它为“冬树皮”，另外一层更加坚硬的紧贴树皮的树层就可以生产出更强更硬的材料。
Because of the cold temperatures, the tundra has two layers: top layer, which is called the active layer, is frozen in the winter and spring, but thaws in the summer.
由于寒冷的气温，冻土带有两层：最上面的一层被称为活动层，在冬季和春季被冻结，但在夏季解冻。
The nutrients are deep down in the active layer anyway, not high up near the surface, which is the part of the active layer most affected by run-off.
不管怎样，营养物质存在于活性层深处而不是在表层附近，活性层受径流影响最大的地方。
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。
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。
Often, you will only need this in the coldest weather, when the fleece adds extra insulation between your base layer and your outer layer.
通常你只会在最冷的天气才需要这个，羊毛会在你的底层和外套之间增加一个额外的隔绝层。
This rime increased, layer upon layer, across Ginnungagap.
这雾凇一层又一层地增加，横跨了太古空隙。
Filtration depends on the development of a thin biological layer, called the zoogleal layer or Schmutzdecke.
过滤取决于薄薄的生物层的发展，该薄层称为动物神经层或去污层。
Portions of the oxide layer are removed to substantially planarize the trench-filled oxide layer as the first polysilicon layer.
所述氧化层的部分被移除，以使所述沟槽填充的氧化层作为第一多晶硅层基本平面化。
The outermost layer of the wall of the heart is also the innermost layer of the visceral pericardium.
心壁的最外层也是心外膜的最内层。
Syringomas were gasified layer by layer by XH-hyperfrequency skin calleidic machine.
采用 XH-高频皮肤切片机对脑膜瘤进行逐层气化。
Create a new layer above the grass layer.
在草地图层的上面，新建一个图层。
The top layer is the application layer, the layer most visualize as the cloud.
最上面一层是应用程序层，这一层是对云的最直观表示。
Services can be formed at all layers of the architecture: the infrastructure layer, UI layer, and data layer.
服务可以存在于体系结构的所有层次：基础结构层、ui层和数据层。
There are only a few places to implement performance gains in an application – the presentation layer, the application layer, and the storage layer.
在一个应用程序中仅有几个地方能够实现性能增益 -表示层、应用层和存储层。
They put sands with different colors inside a transparent bottle layer by layer.
他们一层一层的把不同颜色的沙子装入透明的玻璃瓶。
When your selection is done, press ()to move your roughselection to a new layer with “Layer Via Cut.
选好后，按，用“通过剪切的图层”来把你的粗略选区移到一个新的图层。
It's artificial and it's complicated and it's fraught with layer upon layer of guilt.
这是人为的，是复杂的，而且充满了一层又一层的内疚忧虑。
Then more powder is added, melting and solidifying to add layer upon layer until the object is fully formed.
然后加入更多的这种粉状材料，熔化后再凝固，层层堆积，直到最后形成要制造的物品。
Life is like an onion: you peel off layer after layer and then you find there is nothing in it.
生活就象洋葱：你一层一层拨开就会发现里面什么也没有。
The underlying network architecture can be divided into three layers (Device layer, Transport layer, and Control layer) plus the service layer and will be introduced from bottom to top respectively.
基础网络体系结构可分为三个层次(设备层、传输层和控制层)，其上还有服务层，我们将按照从下向上的顺序分别进行介绍。
You gradually shed layer after layer after layer.
你慢慢一层一层地剥去洋葱皮。
Changes to the data layer update the presentation layer, just as changes to the presentation layer will update the data layer.
对数据层的修改会更新表示层，对表示层的修改也会更新数据层。
Layer 2: Enterprise components layer.
层2：企业组件层。
Layer 1: Operational systems layer.
层1：操作系统层。
层3：服务层。
层3：服务层。
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