硼

In addition, the action promoting graphitization for boron and its effect on microstructure and macroscopic properties of carbon fiber were investigated too.

此外还初步探讨了"硼"促进石墨化及其对炭纤维结构和性能的影响。

The addition of boron acid can promote graphitization.

论文中所述的含硼添加剂促进石墨化的研究，在国内尚属首次。

Strong ability to resist hailstone, wind and snow: as high borosilicate 3.3 high hardness glass is adopted, it has advantages of high light transmittance, low expansion rate and low emission rate.

9抗冰雹风雪能力强：因选用高硼硅3.3高硬度玻璃，具有高透光率、低膨胀率、低发射率等优点。

The ideal activation process parameter as follow: The nickel sulfate hexahydrate concentration 15g·L~(-1);The Sodium borohydride concentration 15g·L~(-1); The Sodium hydroxide concentration 10-15 g·L~(-1);Hydrochloric acid concentration 10-15 g·L~(-1);The activation time in A solution 9min, the activation time in B solution 90s.

理想的活化工艺参数为：硫酸镍15g·L~(-1)，硼氢化钠15g·L~(-1)，氢氧化钠10-15 g·L~(-1)，盐酸10-15 g·L~(-1)，A液中活化的时间控制在9min左右为最佳，B液中活化的最佳时间为90s。

The preparation of cabalt nanoparticles by the reduction of Cobalt chloride hexahydrate with Sodium borohydride in the reverse microemulsion solutions of water/ Didodecyldimethylammonium bromie/ toluene was investigated. i changed the Cobalt chloride hexahydrate concentration in the Didodecyldimethylammonium bromie/ toluene system to analysis the particle size.

在water/ Didodecyldimethylammonium bromie/ toluene的逆微乳化系统中，本人以硼氢化钠来还原系统中的Co的金属前驱盐氯化亚钴来做研究，在实验中本人改变在Didodecyldimethylammonium bromie / toluene系统时的氯化亚钴浓度以改变粒子的大小，本人也尝试改变反应的速度来研究对奈米粒子生成时所造成的影响。

The higher the hot-press temperature and pressure, the higher the cBN content and crystalline perfection were.

而且，随着热压温度、压力和时间的增加，样品中立方氮化硼的含量有明显提高。

The LAB series bonding agents (modificating of alcohol amine complexing with boron trifluoride),the hydantoin and triazine series bonding agent BA603 and the borate ester bonding agent BAG-5 can effectively raise the mechanical properties of the high-energy four groups HTPB propellant when complexing with MAPO,but they can not meet the require- ments of the engine use.

改性醇胺和三氟化硼的络合物LAB系列键合剂、海因三嗪类键合剂BA603与有机硼酸酯键合剂BAG-5在与MAPO复配用于高能丁羟四组元推进剂中，能有效提高推进剂力学性能，但都不能满足发动机使用要求。

We successfully improved the methods of departing O-methyl using boron tribromide, of isolating hydrogen bromide byα-chloro-ethyl chloroformate, and of related in synthesis of natrexone, new medicine, using boron tribromide. This resulted in generation of hydrogen cyanide becoming impossible.

改进了以氯甲酸-α-氯乙酯脱代替溴化氰以及改进的三溴化硼法作为新药纳曲酮合成中相应的方法，去除了合成过程中产生氰化氢气体的可能性。

Today, two systems are used commercially: one is for the deposition of copper by means of formaldehyde as the reducer and another of nickel using either boranates or hypophosphite as reducer .

目前，在塑料上化学沉积金属已经取得工业应用的体系有2种，一种是以甲醛为还原剂的化学镀铜，另一种是硼氰化钾或次磷酸盐为还原剂的化学镀镍。

The pigment in colored cotton fibers was extracted by methanol at room temperature. The results of color reactions HCl-Mg reaction, NaBH4 reaction, NaOH reaction, FeCl3 reaction and Pb(Ac2 reaction of the pigment extractive showed that the pigment extracted by methanol was flavone or flavonol with two adjacent hydroxide groups (Table 2, Fig. 1). The results of UV spectral analysis further proved that the pigment extracted by methanol from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring, and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring and indican replaced a hydroxide group at 3-site of A ring Fig.

通过盐酸－镁粉反应、四氢硼钠还原反应、碱反应、醋酸铅反应、氯化铁反应和紫外光谱吸收的分析表明，甲醇室温提取的棕色棉纤维色素可能是黄酮类化合物，B环上带有邻二酚羟基；甲醇室温提取的绿色棉纤维色素除黄酮类化合物外，还含有3-位羟基被糖甙化的黄酮醇类化合物，A、B环上都带有邻二酚羟基。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。