这个想法是由化学中的化学键理论想到的。在这个理论里，人们通常认为原子中形成满壳层的电子对化学键完全没有贡献。
The idea was suggested by the chemical theory of valency in which one is used to the idea of electrons in an atom forming closed shells which do not contribute at all to the valency.
化学键的形成来源于一个满壳层之外的电子，也有可能是形成于一个不完全的壳层或满壳层上的一个电子空穴。
One gets a contribution from an electron outside closed shells and also a possible contribution coming from an incomplete shell or a hole in a closed shell.
但是研究者发现角质蛋白复合物的化学键保留的很少。 富氮层在两个化石上都有所发现。
But the researchers found chemical-bond fingerprints of chitin-protein complex in thin, nitrogen-rich layers in both fossils.
相反，石墨的柔软和易滑脱特性源于它的碳原子形成了“平面的”化学键，导致了三明治式的层片状原子，而层间吸引力很微弱。
By contrast, graphite is soft and slippery because its carbon atoms form "flat" bonds, resulting in sandwiched sheets of atoms that weakly attract one another.
不幸的是，这种“座曲式”结构的键盘早就被“橡胶圆点”式键盘所取代了。后者的键帽下附有小按棒，按键被摁下时按棒就会触动分布在一层塑料薄膜上的橡胶圆点。
The buckling spring method, unfortunately, has long been replaced by the 'rubber dome,' where little sticks on the underside of the keys press down on rubber domes laid on a plastic underlay.
按下opt键的同时在层调板拖动也可以复制层。
Hold down Opt + drag within the layers palette can also duplicate layers.
在模拟器服务层内部，从请求对象中提取出“transaction”键，然后使用它来指定将要检索、使用并作为POJO响应返回的XML文件。
Within the simulator services layer, a "transaction" key is extracted from the request object, and will be used to determine the specific XML file to retrieve, consume, and return as a POJO response.
处理层获得 inbound键，该键将用于确认将要检索的SpringXML文件。
The processing layer takes the inbound key that will be used to identify which Spring XML file to retrieve.
选择层，头部区域和高亮，按V键切换到移动工具。
Select layers, header and highlight and press "v" to switch to Move Tool.
树可以被视为B树，其中每个(内部)节点仅包含键(不是键值对)，并在其底部附加一层链式的叶子节点。
B + tree can be viewed as a B-tree in which each node contains only keys (not key-value pairs), and to which an additional level is added at the bottom with linked leaves.
首先，我们希望我们的点击并拖动低于原一层又一层黄色的文本并将它移动到一个空间，用箭头键左边。
First, we want to click and drag our layer below the original yellow text layer and move it one space to the left with the arrow key.
将硅本征氧化层与硅热氧化层两种键合界面在退火过程中的行为进行了理论分析与比较。
Wafer pairs with bonding interface being native oxide or thermal oxide have different bonding behavior in the annealing process, which were investigated and compared.
转到窗口，然后层(F7键)。
对稀有气体化合物的分子结构分别用“价层电子对互斥理论”、“价键理论”和“分子轨道理论”进行了分析处理。
This paper analyzes shell electron pair repulsion theory , valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.
在芯片测试中，若引线焊盘上的铝层被探针扎穿，就会影响引线键合的牢固性和器件的可靠性。
If the Al film on the bond pad is pierced through by the probe in wafer probing, the wire bonding strength and device reliability would be affected.
在这个模型中，认为围绕中心原子的化学键的排列取决于价层中电子对的数量。
In this model the arrangement of bonds around the central atom is considered to depend upon how many valence-shell electron pairs.
基于元素键参数拓扑指数原理以及镧系元素价层电子结构特征构建了一种新的拓扑指数HLA。
An element bonding parameter topological index HLA is proposed based on topological principle and valence shell electron structural character.
同时在REGIC中，稀土与碳层间还有共价成键作用，而AGIC和AEGIC中则没有。
In addition, there is covalent bonding between rare earth and carbon layers in REGIC, whereas not in AGIC and AEGIC.
金属表面经过清洗后，硅烷产品在室温下能与其氧化层中氢氧化物反应，形成很强的共价键。
SILANE organo-silane polymers react at room temperature with hydroxides present in the metal oxide layer of cleaned metal substrates to for strong covalent bonds with the metal substrate.
膜层的非线性极化率的改变可用原子基团和价键理论解释。
Changes of the nonlinear polarizability of the molecular layers can be explained by using the theory of atom-radical and valence bond.
这种疏松层便是大多数雪崩形成的根源，该层中大的杯状雪晶之间的键合很弱，非常容易断裂。
It's this weak layer that's at the root of most avalanches. The bonds between the large cup-shaped snow crystals in this layer are only weak and they break easily.
在草图40，你现在可以简单地按上形回车键即可显示所有的点和其中包含的路径，无论多少层的存在。
In Sketch 40, you can now simply press the Enter key on that shape to reveal all the points and paths contained within it, no matter how many layers are there.
通过对信贷业务系统的四层架构设计，使得系统以客户为中心，并且增强了系统核心对业务的处理能力，做到一键式操作、智能化处理。
Through the design of four-tier structure, the business core of the system processing capacity is enhanced, so that it can be operated with intelligence.
可用性限制：用老版本Flash设计的网站，后退键没有作用：点击后退键会使你退出Flash网站，而不是返回上一层网页。
Usability Constrains: When you navigate a Flash site designed with a older version, the back button does not work: instead of taking you to the previous screen, it will get you out of the Flash site.
在当前为移动工具时，即使不选择自动选择图层，只要按住Ctrl键，同样可以自由的选择分属不同层的图像内容。
In the current mobile tool, if you do not select Auto-select the layer, as long as you hold down the CTRL key, you can also free choice from different layer of image content.
我们将涵盖如何做天空取代并获得磨砂使用亮度键，添加元素的三维层构建一个基本的复合材料。
We will be covering how to do sky replace and get a matte using Luma Keys and add 3d layers of elements to build a basic composite.
利用该多孔纳米结构作为键合层，由于纳米尺度效应，可以在较低的温度和压力下实现热压键合。
The porous nano-structure is used as a bonding layer, and thermocompression bonding can be realized at lower temperature and pressure due to the nano-scale effect.
在对微纳米通道进行热键合过程中，分别改变键合胶层厚度，键合温度，通道尺寸和键合时间四个条件进行了实验。
In the process of thermal bonding, experiments are carried out under different conditions such as variable polymer thick, temperature, channel width and time.
拉伸模拟表明，由于这些层间键不导致碳纳米管的显著结构破坏，因此它们不会导致多壁碳纳米管拉伸强度的显著降低。
Tensile testing show that the tensile strength is not noticeably reduced because these interlayer bonds do not lead to the abrupt damage of the MWCNT structure.
然而，它表面自然形成的二氧化钛膜层使其呈现出生物惰性，植入人体后难以和宿主骨间形成强有力的化学键合；
However, the natural titanium oxide film formed on its surface make it bio-inert, it is difficult to achieve chemical bond with bone and form new bone on their surfaces;
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