金刚石

Presently, the nucleation and growth mechanism of diamond hasnt been known completely. Thermodynamically, the nucleation and growth of diamond at low temperature and low pressure is still considered as a paralogism.

目前金刚石的热力学成核及生长机理尚不完全清楚，金刚石在低温低压下的成核和生长，仍被认为是一种热力学的"悖论"。

Rhenium diboride is as incompressible as diamond in one direction, and in the other direction, just slightly more compressible.

在某个方向上，二硼化铼的'不可压缩性'与金刚石相同，在另一个方向上，二硼化铼的'可压缩性'仅比金刚石稍高。

More defects forming in the growth plate during deposition almost attribute to the lattice constant relaxation, which makes its lattice constant get larger. However, self-annealing of diamond thick films for long time in the process of deposition makes their lattice constant in their interior and nucleation plate approach its natural value.

化学气相沉积金刚石初期生长的晶体存在大量的空位等缺陷，晶格松弛，在金刚石膜持续生长过程中，形核面和膜内部在高温下发生长时间的自退火，缺陷浓度下降，晶格松弛现象消除，晶格常数变小并趋于理论值。

Synthetic diamond is not only the greatest achievement during the the development of superhigh pressure technology, but also accelerate the progress in superhigh pressure technology.

人造金刚石是超高压技术发展最辉煌的成果，同时人造金刚石的诞生又促进了超高压技术的进步。

The influence of thermal boundary resistance on thermal conductivity of composite material is discussed in particular.

研究了金刚石／银复合材料的导热率与金刚石的含量、粒度等之间的关系，着重讨论了界面热阻对复合材料导热率的影响。

During a long period, cobalt is thought to be a good binder due to good wetting properties, but its present price is as high as 720 yuan per kilogram, so the study of substituting Co diammd tool is an important subject in our country.

长期以来，金属钴被认为是金刚石工具中最好的粘结金属，但由于金属钴其价格和供应极不稳定，目前市场价格高达720元/kg，所以研究代钴金刚石工具是国内研究者正进行的一个重要课题。

Chemical vaporous depositon growth Sythetic Diamond is a New Technology.

利用化学气相沉积方法生长金刚石，是人工合成金刚石材料的新技术。

In the 1970s the emphasis shifted to Zaire's reserves of tantalum, wolframite, germanium -- substances vital to semi-conducting electronics.

到了80年代，"IIb型蓝金刚石"将成为世界上最重要的军事资源--而人们认为扎伊尔就有这种蓝金刚石。

This paper researched the key part of framework aclinic slide structure on diamond frame sawing machine, which is the axially moving hydrostatic journal bearing. The major sawing motion form of diamond frame sawing was analysed. The structure designing model of the bearing according to the practice was established; and by the systemic analysis and research on the lubricating mechanism and performance, the designed scheme was proved out.

本文通过对金刚石框架锯主要锯切运动形式分析，以金刚石框架锯锯框水平滑动机构关键件－轴向运动液体静压轴承为研究对象，结合实际建立了该轴承的结构设计模型，通过润滑机理与性能的系统分析研究，实现了对设计方案的有效验证，并满足实用要求。

The analysis of the chemical composition of mineral inclusions including olivine, garnet, clinopyroxene, and chromite from Mengyin and Fuxian diamonds, reveals that the major elements of mineral inclusions in diamond show characters with high depletion in basaltic composition.

对山东蒙阴、辽宁复县两地金刚石中包裹体矿物包括橄榄石、石榴石、单斜辉石和铬铁矿的化学成分进行了深入分析，金刚石包裹体矿物的主量元素显示华北地台至少在古生代金伯利岩侵位时具高度亏损玄武质的难熔克拉通岩石圈地幔特征。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。