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In this paper,with respect to the low reactive activity of ludwigite from Wengquangou for the manufacture of borax by the CO2-soda process,a kind of composite additive was employed for the calcination of ludwigite.

针对碳碱法加工翁泉沟铁矿生产砂过程中存在的矿石活性低等问题,通过添加复合添加剂对铁矿进行活化焙烧,用常压碱解率评价焙烧矿的反应活性,分别考察了复合添加剂用量、焙烧温度以及焙烧时间对翁泉沟铁矿反应活性的影响。

We also studied the electroluminescent and electrochemical properties of five organoboron compounds with the B2 as acceptor (Mes = 2,4,6-trimethylphenyl).

此外还考察了5个含米基为电子受体的有机化合物的电化学和在OLED中的性质,发现这5个化物在器件中表现出的性质有很大差异,从中筛选出发光较好的蓝光材料B3。

The melting point of the pure periclase magnesia is 2,800℃, some impurities may reduce the melting point of the magnesia , borides influence is extremely remarkable.

纯净的方镁石型氧化镁的熔点为2800℃,一些杂质可使氧化镁的熔点降低,其中化物的影响极为显著,即使是少量的化物(0.01%-0.02%)的存在就将导致氧化镁的抗蠕变性能明显降低,而B2O3在高温时的气化能够造成氧化镁材料的气孔率增大,严重影响其高温强度,故镁砂降是非常重要的。

In the bolting time and blooming time, B deficiency mainly influenced on the growth of the propagative organ of rapeseed ( Brassica Napus L.), the agronomic character was similar to the seedlings, and the B concentration range of the rapeseed varieties which responded to the B scarce was 0.005 mg/L to 0.25 mg/L.

苔期和花期,缺主要影响甘蓝型油菜繁殖器官的形成和发育,营养生长农艺性状的变化规律与苗期相似,品种间对缺反应差异最大的浓度范围为0.005 mg/L—0.25 mg/L。

Nickel-boron alloys form the basis of brazes used to join many nickel-base alloys,especially in aerospace.a eutecytic forms between nickel and nickel boride n and so a nickel boron braze can melt and flow without melting the nickel-base materials to be joined.

熔合依据镀黄铜过去常常加入许多镍基地合金的形式,特别是以航空航天。a eutecytic形式之间镍和镍化物n和镍如此镀黄铜可能熔化和流动,无需熔化将被加入的镍基地材料。

Compared with the time, the impact of temperature factors on the layer thickness is greater. The surface hardness of 45 steel is greatly improved for the exist of FeB; the corrosion resistance of boronizing layer is excellent which can resist hydrochloric acid, sulfuric acid and sodium hydroxide.

相比而言,温度对渗层厚度的影响大于时间的影响;渗层中FeB相使表面硬度显著提高;渗层抗盐酸、硫酸、氢氧化钠腐蚀性优良。

B〓C coating possessed 4% of porosity, 12. 8Gpa of bonding strength, 28Gpa of microhardness, and its modulus is up to 230Gpa. It would provide a kind of coating material with excellent properties for many industrial fields.(2) The phase composition of B〓C coating was studied by XPS, XRD and EDS. It was found that: the oxidation activity energy of B〓C powder and coating is different, which is due to the difference of phase composition between them.

用XPS、XRD和EDX研究了碳化涂层的相组成,发现碳化粉末在涂层形成过程中不可避免的存在分解;比较了碳化涂层和粉末在高温下的氧化行为,发现涂层的氧化活化能比粉末要低,这是由于涂层和粉末相组成不同所造成的。

Solid powder boronization s and the heat treatment later were carried out to the low-carbon steel Q235A template used in brick molding machine.

对制砖机用低碳钢Q235A模板进行固体粉末渗和渗后热处理,分别研究了热处理前后所获渗层及基体的显微组织,并对其渗层截面进行硬度分析,而且对不同处理方式的模板进行了工艺寿命实验。

The experiment results show that the lowest synthesis pressure changed with the different proportion of added boron. At the same time, from the color change of synthesized diamond, we can see that it is an effective method to improve the content of boron in diamond crystal.

实验结果表明,随添加比例的不同,合成金刚石的最低压力点也不同;同时,通过不同添加比例的合成出金刚石的颜色,可得知该方法对提高金刚石内含量的有效性。

Heterborane was gained by displacing of other non-metallic atoms to Boron of borane skeleton structure.

凡是烷骨架中的原子被其它非金属原子取代后均可得到杂烷。

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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。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?