硼

Based on these, we will measure isotopic composition of boron in biological fossils, such as shell, foraminifer et al. producing from Ynaghu Village, Yanqing Basin, Beijing at early Quaternary and from the sediment of salt lake in Tibetan at Quaternary, and then offer a reliable boron isotopic evidence for determining their source and survival surroundings.

在此基础上对北京延庆杨户庄第四纪早期地层和青藏高原第四纪盐湖沉积产出的有孔虫、贝壳类等生物化石的硼同位素组成进行测定，为确定它们的海陆相来源及其生存环境提供硼同位素证据。

On the basis of the reductant hydrogen theory, hydrogenate theory and electrochemisty mechanism, the reaction mechanism of deposits is discussed systematically, with phosphinate, borohydride and borohydride as reductant.

利用已提出的还原氢态理论、氢化物理论以及电化学理论分别以次磷酸盐、硼氢化物以及次磷酸盐与硼氢化物作为复合还原剂条件下，对镀层的反应机制进行了系统的讨论。

The method on trans fatty acids analysis in food is very important. The effects of methylate sodium, potassium hydroxide, sulfuric acid and boron trifluoride in methanol and their different concentration and dosage on TFA analysis were studied. The chromatographic condition and the influence of time and temperature on the esterifation of TFA using boron trifluoride in methanol were optimized. A method for analyzing TFA were established by GC based on boron trifluoride in methanol and RT-2560(100m×0.25mm×0.2μm) capillary column.

研究了甲醇钠－甲醇、氢氧化钾－甲醇、浓硫酸－甲醇和三氟化硼－甲醇4种甲酯化试剂的浓度、用量及甲酯化时间和温度对反式脂肪酸检测的影响，优化了色谱条件，建立了以三氟化硼－甲醇法甲酯化，RT-2560(100m×0.25mm×0.2μm)毛细管柱为基础的反式脂肪酸气相色谱检测方法，C18：1-9 t， C18：1-11 t， C18：2-9 t， 12 t和C22：1-13 t 4种反式脂肪酸的最小检出浓度在0.774.08 mg/kg之间。4种反式脂肪酸不同添标浓度回收率为98.44%101.23%，重复测定的相对标准差在0.22%1.31%之间，有较好的准确度和重现性。

Finally, the relationship between the performance of doped a-Si: H and process conditions is discussed, which includes the deposition of n〓-a-Si: H and p〓-a-Si: H, the relationship between dark conductivity, photoconductivity of boron light-doped a-Si: H and process conditions, and the relationship between the stability of LCLV and S-W effect of a-Si: H.

最后讨论了掺杂a-Si：H的性能与工艺条件的关系，包括重掺杂n〓、p〓非晶硅的制备，硼轻掺杂a-Si：H的暗态电导率与工艺条件的关系，硼轻掺杂a-Si：H的光电导与工艺条件的关系，以及液晶光阀的稳定性与a-Si：H的S-W效应。

In this paper, the delay precision of B/Pb3O4 delay composition is proved tobe not as good as that of B/BaCrO4 delay composition through the research of PIR.

通过对反应机理的研究，揭示出硼铅丹延期药的长贮稳定性较差、不宜长期贮存，而硼铬酸钡延期药的长贮稳定性相对较好的结论。

Responses of oil rape to low boron stress varied greatly in species, its very important to study the physiological and genetic mechanisms of tolerance to low B stress for providing the base of genetic improvement of rape and oil crops production in China.

不同油菜品种对低硼胁迫的响应存在很大差异，研究其耐低硼胁迫的生理和分子遗传机制，为对其进行遗传改良奠定基础，对于我国的油料作物生产意义重大。

However, W addition stabilizes the phase of 〓, which can weaken the exchange coupling between the nano-grains of magnetic phases, resulting in the decrease of the coercivity and rectangularity of magnets.

另一方面，添加W能够稳定分布于晶间的富硼相〓，该富硼相削弱磁性晶粒间的交换耦合，导致磁体矫顽力降低和矩形度变差。

At higher applied forces, rhenium diboride is a little bit below that.

在更高的作用力下，二硼化铼的硬度仅比氮化硼稍低。

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。

In addition, scratch test and measurement of microhardness were carried out to investigate variation of adhesion and microhardness of post-implanted c-BN films

此外，还利用划痕试验测量了氮离子注入前后立方氮化硼膜临界载荷，用超轻载荷显微硬度试验机测量了立方氮化硼膜的显微维氏硬度。

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。