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A New Process of Making Al 18 B 4O 33 Whisker

制备硼酸铝晶须的新工艺

Study on the Surface Structure of Li 2B 4O 7 Crystals

四硼酸锂晶体生长表面结构的研究

Crystal Growth and Second Harmonic Generation of Li 2B 4O 7

Li2B4O7晶体及二次谐波性能

Study on Crystalline Property of Li 2B 4O 7 Glass ceramics

Li2B4O7微晶玻璃晶化性能的研究

Growth of Li 2B 4O 7 Single Crystals by Bridgman Method

坩埚下降法生长Li2B4O7单晶

Microwave dielectric materials of BaTi 4O 9 fiber were prepared by hydrothermal synthesis method .

通过水热法首次制备了微波介质材料&BaTi4O9的纤维体。

In SHS process Na 2B 4O 7 as diluent , may decrease combustion temperature and combustion rate .

在自蔓延过程中作为稀释剂存在的Na2B4O7，降低燃烧温度和燃烧速率。

Tellurium is trapped in Te 4O 11 form which is analyzed by X ray diffraction method .

用X射线衍射分析得碲以Te4O11形式捕集，探讨了捕集、释放机理。

The Effect of Na 2B 4O 7 Additive on the Structure and Properties of Ceramic Layers of Composite Pipes

Na2B4O7添加剂对复合钢管陶瓷衬层组织性能的影响

The Effect of Sr , Zr on the Microwave Dielectric Properties of BaTi 4O 9 Ceramics

Sr、Zr对BaTi4O9陶瓷微波介电性能的影响

New Laser Self frequency doubling Crystal Cr : Nd : Gd Ca_ 4O ( BO_3 ) _3

新型激光自倍频晶体Cr：Nd：GdCa4O（BO3）3

Highest vein order was 4o or 5o .

最高级脉为4、5。

As rust removing agent , Na 2B 4O 7 additive facilitated good metallurgical combination between intermediate and steel pipe .

Na2B4O7添加剂作为除锈剂，促使过渡金属层与钢管实现了完好的冶金结合。

CT or MRI scan showed cystic tumour in 175 cases , solid and cystic in 85 and solid in 4O .

CT或MRI检查囊性肿瘤175例，实体性肿瘤40例，实体与囊腔并存85例。

BaTi 4O 9 ceramic possesses an excellent combination of low dielectric loss , moderate dieletric constant and low temperature coefficient of dielectric constant .

BaTi4O9陶瓷具有优良的介电性能：低介质损耗、中等介电常数和低的介电常数温度系数。

Sectional anatomy and CT image of percutaneous puncture at L_ ( 3 ~ 4O ), L_ ( 4 ~ 5 ) intervertebral discs

经皮穿刺L（3～4）和L（4～5）椎间盘的断层解剖与CT

The indexes in women over 4o years were higher than those of women under 40 ( P0.05 ), also in women whose menarche age was under 18 years ( P0.05 ) .

初潮年龄在18岁以上的妇女骨代谢指标明显增高（P005）；

With SHS system composed of Al , Fe 2O 3 and Na 2B 4O 7 , ceramic lined steel pipe was made by aluminothermy SHS centrifugal process .

采用Fe2O3Al+Na2B4O7系铝热离心法制备了陶瓷内衬钢管。

Heat-electric properties at high temperatures were measured on tungsten trioxide ( WO 3 ) ceramics doped with Tb 4O 7 prepared by conventional solid-sintering method .

采用传统的固相烧结技术，制备Tb4O7掺杂的WO3陶瓷。

Zn 4O ( BO 2 ) 6 : Co 2 + crystal can be as a saturable absorber for Q switching in 1.54 μ m wavelength .

Zn4O（BO2）6：Co2+晶体是一种可能的154μm饱和吸收被动Q开关晶体。

A new catalytic kinetic spectrophotometry method for the determination of trace manganese based on the oxidation reaction of H 2O 2 with methylthymol blue in Na 2B 4O 7-NaOH medium has been developed .

硼砂氢氧化钠缓冲介质中利用锰（Ⅱ）催化过氧化氢氧化甲基麝香草酚兰褪色为指示反应，建立了测定锰的动力学光度新方法。

In the present research , the effect of aging on the SCC behavior of Al 18 B 4O 33 w / Al composite was investigated using Double-Cantilever-Beam ( DCB ) specimen in 3.5 % NaCl solution .

用双悬臂梁预制裂纹试样，研究了硼酸铝晶须增强6061Al复合材料在35%NaCl溶液中的应力腐蚀（SCC）开裂行为，探讨了时效对复合材料应力腐蚀开裂行为的影响规律。

A dielectric ceramic , mainly crystalline BaTi 4O 9 ( BT 4 ), was prepared using electric_ceramic technology . The structure and the dielectric properties of Mn_doped BaTi 4O 9 ceramic were investigated .

用电子陶瓷工艺制备主晶相为BaTi4O9（BT4）的介电陶瓷，研究用锰掺杂的BaTi4O9陶瓷的结构和介电性能。

The coagulated spherical particles from zirconium sol are amorphous and in the form of Zr 4O 2 ( OH ) 8 Cl 4.After calcination at 650 ℃, they transform into monoclinic zirconia particles .

从溶胶中析出的是非晶态的Zr4O2（OH）8Cl4，经过650℃下煅烧转变成单斜型氧化锆。

Conclusion : ( 1 ) In one 0.022 inch bracket , rectangular stainless steel arch wires and rectangular nickel - titanium arch wires with 0 . 025 inch width section have almost 4o and 60 play angle each 0.001 inch play respectively .

结论：①在0.022英寸托槽体系内，宽面为0.025英寸的不锈钢方丝及钛镍方丝每0.001英寸的余隙分别有4°、6°的余隙角；

In this paper , we presents a new process of making Al 18 B 4O 33 . Using solid powder as materids its structure is determined by XRD and its morphology is measured by SEM . We also discuss its formation mechanism and the influence factors here .

利用固体粉末新工艺制备硼酸铝晶须，用SEM观测了晶须形貌，用XRD和TEM确定了晶须的相结构，并对晶须形成机理及影响因素进行了分析。

Patients with severe shock had to enlarge their blood volume by infusing 20 to 4o ml / kg of normal saline , After correction of shock , fluid infusion was carried out according to the above stated formula in 24 hours post-burn .

轻、中度休克病人休克期度过平稳，重度休克病人先用生理盐液按20－40ml／kg扩容，待休克纠正后，仍用公式估计液体量在伤后24小时输入。

XRD , SEM and EDX are used to study effect of Na 2B 4O 7 additive on structure and properties of ceramic lined pipes produced by centifugal SHS process . It is showed that some changes take place with Na 2B 4O 7 additive .

利用XRD、SEM、EDX等方法，研究了Na2B4O7添加剂对离心SHS陶瓷内衬复合钢管结构及性能的影响。

A new catalytic kinetic spectrophotometric method for the determination of trace cobalt has been developed . The method is based on the catalytic effect of Cobalt (ⅱ) on the oxidation of morin by hydrogen peroxide in the medium of Na 2B 4O 7 NaOH ( pH 10.5 ) .

研究了在pH10.5的Na2B4O7－NaOH介质中，痕量钴（Ⅱ）对过氧化氢氧化桑色素褪色反应的催化作用，建立了催化动力学光度法测定痕量钴的新方法。

The effect of Na 2B 4O 7 additive on compression-shearing strength of ceramic-lined pipe produced by centrifugal-SHS process is studied . It is showed that the interfacial tension between Al 2O 3 and Fe drops with Na 2B 4O 7 as an additive .

研究了Na2B4O7添加剂对Fe2O3+Al体系离心SHS陶瓷内衬钢管压剪强度的影响。