upper layer

基本解释

On the lower one, we draw a largish circle of grey. Then in the upper layer, we draw a smaller circle of black.
在下面一层我们画出一个较大的灰色圆圈，在上面一层，我们画一个小一点的黑色圆圈。
It sets up encryption, integrity verification, and (optionally) compression and exposes to the upper layer an API for sending and receiving plain text packets.
它设置加密、完整性验证和（可选）压缩并向上层公开一个用于发送和接收纯文本数据包的 API。
The scientists posit that these meteor strikes may also have triggered the flow of hot rock in the upper layer of the mantle right below the Earth's crust that is seen up to the present day.
科学家们断定，这些流星的冲击也可能触发了刚好低于地球地壳的地幔上层里的热岩，这就是至今我们所能看到的。

This upper layer is available in standard camouflage colours, such as yellow (for deserts) and green (for jungles).
ECONOMIST: Monitor: A good kind of gas-guzzling The
This relatively minor shift, the model found, still produces enough energy to initiate a wave-like pulse of crystal-shattering snow separation that quickly propagates uphill and leads to a major release of the upper layer.
MSN: How a deadly avalanche can be triggered

上层
The results indicate that dynamic characteristics of upper layer soil are major factors that affect the complex stiffness of pile. Pile stiffness increases and damping decreases with increasing modulus of upper soil.
通过参数影响分析研究发现,成层土中桩顶复刚度主要受上部土层动力特性及性质影响;随着上层土模量增大桩顶复刚度的刚度部分也相应增大,阻尼部分相应减小。
计算机科学技术
上层