Glaciers are eventually created when the weight of the snow is so great that the lower layers are pressed into solid ice.
当雪的重量大到能将下层压成固体冰时，冰川最终形成。
But I think even NLTK's lower layers make it a useful framework for both pedagogical and practical applications.
不过，我认为，即使是NLTK较低的层，也可以成为一个既可用于教学应用程序也可用于实际应用程序的实用框架。
The main purpose of the layering principle is for lower layers to be unaware of the higher layers they are serving.
分层原则的主要目的是让较低层不知道其所服务的较高层的情况。
During the execution of operations in each layer, usually the higher layers have to wait for a result from lower layers.
在各层操作的执行过程中，通常高级别的层次只得等待低级别层次的结果。
That finding raises the possibility that the chemical infiltrates the skin's lower layers to enter the bloodstream directly, the EWG says.
EWG说这项研究说明，这种化合物能够侵入皮肤的下表皮层并直接进入血液循环系统的可能性是很高的。
The injury affects both the upper and lower layers of skin.
皮肤上下皮层都被损伤。
To perform requested transmissions, the MAC layer receives HARQ information from lower layers.
为了执行被请求的传输，MAC层从低层接收HARQ信息。
A coal stove with a hopper that automatically replenishes itself from above as lower layers of fuel are consumed.
底燃火炉，自动填煤火炉：一种带有漏斗的煤炉，当下层燃料燃尽时，它会自动地从上面补充。
Via the beam frame structure, the upper and lower layers of a combination house can be simply and stably combined.
通过梁架结构可以实现组合式房屋上下两层的简便、稳定的结合。
The "Manual processes and customer-experience processes" layer, at the top of Figure 1, is for setting the context for processes in the lower layers.
图1顶部的“手动流程和客户体验流程”层用于为较低层的流程设置上下文。
A typical component provides one or more services and corresponding client libraries, along with the domain-specific UI pieces built on these lower layers.
典型的组件提供一个或多个服务和对应的客户端库，以及建立在这些较低层基础上的领域特定的UI部分。
It is one of the components in the uppermost layer of your skin where it helps to retain moisture while protecting the lower layers from exposure to the elements.
这是您的皮肤最外层组织的构成部分，有助于锁住水分，同时保护着下层不暴露在外。
As far as the degradation and the use of the lignocellulose are concerned, the middle and lower layers of the compost are almost the same as the upper layer of the compost.
就菌袋中不同料层木质纤维素的降解和利用而言，菌袋的中层和下层与上层相似。
However, this approach does not work well if you have a layered architecture, with subsystems in the upper layers dependent on the capabilities of subsystems in the lower layers.
然而，如果你有一个分层的体系架构，在上层的子系统依赖于底层子系统的能力，这种方法将不能够很好的工作。
The lower layers (services, service components, and operational systems) are provider concerns, while the upper layers (services, business processes, and consumers) are consumer concerns.
较低层（服务、服务组件和操作系统）与提供者有关，而较上层（服务、业务流程和使用者）与使用者有关。
In general, the simulation effect in upper layers is better than in lower layers, and the simulation effect of variables with strong cycle signals is better than that with weak cycle signals.
总的来说，高层效果好于低层，具有强周期变化规律的变量效果好于周期性弱的变量。
In general, the simulation effect in upper layers is better than in lower layers, and the simulation effect of variables with strong cycle signals is better than that with weak cycle signals.
总的来说，高层效果好于低层，具有强周期变化规律的变量效果好于周期性弱的变量。
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