界层

The coarsened long strip-like Cu6Sn5 with a length of more than 80μm growing from upper interface of IMC layer to solder matrix and its length of more than 80μm in the matrix are observed in the solder with 1.5wt-%Cu addition after thermal storage.

在含Cu量大於1.0 wt%时，会有金属间化合物Cu6Sn5在焊料内析出，大小随Cu量的增加而增大，当添加量达最高的1.5 wt% Cu时，焊料在长时间热储存后，从焊料/Cu界面的IMC层上表面向焊料成长的Cu6Sn5长度超过80μm，而焊料内最长的甚至超过100μm。

The lithography, sedimentary facies and sequence of the Mesozoic both outcropped in land and occurred offshore may correlate well.

陆区和海区中生界在岩性、岩相以及层序地层等方面存在可对比性。

The corrosion product on the surface of 1N-939 alloys is found to be composed of chromium oxide and sulphide.

腐蚀层下没有贫铬现象，而出现贫钛区与沿晶界的内氧化物以及钇与钛的硫氧化物的分散质点。

It has been found that wear of the claddings is characterized by plastic deformation and local accumulation in the subsurface region at the early sliding stage. Then cracks were generated in the borders of different phases and grains. The cracks tended to extend, grow, and finally detach from the surface layer of the cladding, with the formation of wear debris.

结果表明，在常温滑动干摩擦条件下，堆焊层的磨损失效机制表现为表层的塑性变形及局部积累，随后磨损裂纹在亚表层相界面和晶界处形成并扩展和连通，最后发生表层材料分离的过程。

After 10h ball milling, the alloy of carbonyl iron and carbonyl nickel began to form, and the sample kept its original bcc and fcc structure; after 100h ball milling, the sample became a solid solution with bcc structure; after 200h ball milling, the diffraction peak of Ni almost disappeared and the isotropic grains with D achieved, which was mainly attributed to the dislocations and disclinations of the nanocrystalline bcc FeNi suffering from severe plastic deformation by ball milling.

球磨10h时，羰基铁和羰基镍开始形成合金，但大部分Fe、Ni原子仍分别以bcc结构和fcc结构存在。球磨100h时，样品以bcc结构的FeNi合金为主，球磨200h后，样品中fcc结构Ni特征峰几乎消失，FeNi纳米晶达到最小粒径的平衡值，~8nm。高能球磨过程中，晶界区域的层错缺陷是合金化和纳米晶形成的重要因素。

Sliding of grains boundary and interface was a main mechanism of superplastic deformation of metal matrix composite. Dislocation did major action to coordinate this two sort of slidings, in the meantime, stacking-faults and twin-crystals did asistant action.

经过对上述问题的研究，本文对金属基复合材料超塑变形的微观过程给出概括性的描述：金属基复合材料超塑变形的主要机制是晶界及界面滑动，位错对实现这两种滑动起主要的协调作用，层错与孪晶则起辅助的协调作用。

Super large type sedimentary hydrothermal sulfide ore deposits, located in middle Qinling and west Yinshan mountains, has shown the multi metal and pyrite type deposit The deposits are shown sililay geo geochemistry characteristics to SEDEX sulfide deposits in middle Proterozoic and Paleeozoic Era in the world, i e , ore forming age were 1 4～1 2 Ga and 0 4～0 3 Ga ore bodies show more than 1 000 m long and multi layered distribution, the ore of sulfide rich show massive band...

地质地球化学特征与世界中元古界和古生界中的SEDEX 硫化物矿床基本相同：成矿时代为1－4 ～1－2 Ga 和0－4 ～0－3 Ga，均产于克拉通边缘盆地中；矿体延长达千米以上，具多层性特征；富硫化物矿石为块状条带状，矿物组合简单，有显著分带性；硫同位素组成为海相硫酸盐型，铅同位素为混合程度较高的均匀性铅等。

According to the boiler burner design features introduced secondary air baffle according to their works were divided into secondary air baffle, baffle perimeter wind, burn the top layer of the wind baffle and oil damper baffle gun.

根据锅炉燃烧器地设计特点，推荐二次风挡板根据其起作用不同分为辅助风挡板、周界风挡板、顶部燃尽风挡板和油枪层风门挡板。

Before about 1900, temperature was assumed to decrease with height to the atmosphere's outer limit because it was known to do so in the lower atmosphere.

在大约 1900 年前，人们认为气温随高度降低一直到大气的上界，因为当时人们知道在大气低层的情况就是这样的。

English: 824. Before about 1900, temperature was assumed to decrease with height to the atmosphere's outer limit because it was known to do so in the lower atmosphere.

在大约1900年前，人们认为气温随高度降低一直到大气的上界，因为当时人们知道在大气低层的情况就是这样的。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。