硼

Boron is a kind of fuel obstinately searched for high-performance air-breathing solid rocket/ramjet engine and ramjet engine.

硼是高性能吸气式的固体火箭冲压发动机和冲压发动机瞩目追求的燃料，80年代常规固体火箭动力方面对硼燃料也表现了浓厚的兴趣。

The preparation of potassium malonyloxyborohydride in situ and its seletive hydroborating alkene are described.

介绍了丙二酰氧基硼氢化钾的制备及其原位与烯烃的选择性硼氢化。

The hot stamping processes of B-bearing steel sheet after hot rolling were simulated at Gleeble 1500, the microstructure and mechanical properties were analyzed at different heat treatment conditions, and the segregation of boron and precipitation of boron phase were investigated by X-ray diffraction analysis and particulate tracking autoradiograph technology.

通过Gleeble1500热／力模拟实验机对轧后含硼钢板进行了热冲压过程模拟，分析了各种热处理条件对含硼钢组织性能的影响，并采用X射线衍射技术和径迹照相技术分析了硼的偏聚和硼相析出情况。

In this thesis, the dynamic processes of boron segregating to grain boundaries during cooling in Fe-40%Ni alloy are first studied by boron autoradiography technique and transmission electron microscopy.

本文首先应用硼径迹显微技术和透射电镜观察了Fe-40%Ni合金在连续冷却过程中硼向晶界非平衡偏聚的发展过程。

Simplex optimization is used to study the composition of boronizing agent s consisting mainly of borax.

将单纯形优化法应用于以廉价硼砂为供硼源的渗硼剂的研究。

The adhesion behaviour and wear mechanism of the RE-chrome- boride layer and boride layer of 45 steel have been studied by means of wear tests in this paper.

研究了45钢固体硼铬稀土共渗层和渗硼层的粘着磨损特性，并对磨损机理进行了探讨。

To improve the anti-corrosion property of low carbon steel in zinc melt,the iron boride is synthesized on the surface of the low carbon steel with solid boriding processing.

为提高低碳钢的抗锌蚀能力，采用固态渗硼工艺在低碳钢的表面形成了致密的铁硼化合物保护层。

The contour diagram of the boride layer thickness of the steel 45 boronized with 5%Nd2O3 addition was built according to experimental data.

根据所得数据建立了45钢在添加w（Nd2O3）=5％稀土渗硼时的渗硼层等厚线图。

In this paper different concentrations of iron boride powders were put into the iron - based metal catalyst to get different kinds of boron-doped diamonds with high thermal stability under high temperature and high pressure conditions.

本文在铁基触媒的基础上加入不同含量的硼铁粉，用静压法合成了含硼金刚石。

By graduating the content of metal boride among several coating layers, the effect of differences in thermal expansion rates between carbon and metal boride are attenuated.

通过在几层覆层中金属硼化物含量的逐渐变化，使碳和金属硼化物之间热膨胀率差异的影响变小。

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。