查询词典 composite hypothesis

Methods:The porcelain specimens etched for 0 to 210 s and then bonded with composite resin. After storage in 37 ℃ water for 24 h the shear bond strength was measured.Results:Unetched porcelain did not bond to composite resin. Different etching time resulted in diferent bond strength.

他们之所以能够成功的被应用于临床上，与目前在瓷与树脂粘结方面所取得的成功是分不开的，瓷与树脂产生的牢固结合力是获得成功的必由之路。

Contact configuration under unlubricated condition were investigated, with the effect of the nano-La_2O_3 content on the friction and wear behaviors of the composite coatings to be emphasized. The worn surfaces of the composite coatings were analyzed using a scanning electron microscope and compared with t...

结果表明，在干摩擦条件下，随着La2O3纳米颗粒含量的增加，纳米复合镀层的摩擦系数降低，耐磨性能提高；La2O3质量分数为3.1%的纳米复合镀层的摩擦系数最低，耐磨性能最佳；纯Ni镀层呈现严重的粘着磨损特征，而纳米复合镀层主要呈现轻微磨粒磨损特征。

Due to the unorderly microstructure and the tin oxide assemble in matrix, the electric conductivity of composite fabricated by powder metallurgy became lower than that composite fabricated by reactive synthesis.

粉末冶金法制备的材料由于其杂乱的组织结构以及氧化锡的团聚而使材料的导电性较差。

OBJECTIVE: To explore the dynamic viscoelasticity difference of unpolymerized light-cured composite resins with retentive filler or normal filler, and to investigate effect on the clinical manipulation properties of rheological behaviors in two light-cured composite resins to define an ideal resin.

目的：评价含固位性填料（retentive filler，RF填料）和普通填料（normal filler，NF填料）的未聚合光固化复合树脂的动态黏弹性，并探讨两种光固化复合树脂动态黏弹性对临床操作性能的影响，以确定理想的光固化复合树脂应具备的条件。

The classification, mixing mode and the structure of core-sheath filament/staple composite yarns were illuminated. An analysis of the migration mechanism of fibers and the unreeled conditions of rigid, flexible and elastic filaments was made, and the spinning parameters were analyzed and optimized. Then, the process technology of spinning core-sheath filament/staple composite yarns on the ring spinning frame using rigid, flexible and elastic filaments was put forward.

先回顾短纤／长丝复合纱的分类、组合方式及其结构，进而分析刚性长丝、柔性长丝、弹性长丝的退绕条件、纤维转移机制，优化了复合成纱的工艺参数，提出以制备芯鞘型刚性长丝包芯纱、柔性长丝包芯纱、弹性长丝包芯纱为目标的复合纺纱工艺技术和纺纱工艺参数。

Since error design of flow structures, such as deadlock, unsafeness, non-reachability and so on, will affect composite Web services performance, these errors should be detected and corrected before composite Web services are executed.

由于死锁、不安全和不可达等流的设计错误会影响组合Web服务的有效执行，因此这些错误应在组合Web服务执行前被检测出并修改。

The difference of fluid statics between different infiltration modes was studied. It was found that it was necessary to apply pressure to assure the transverse infiltration even if the C/Mg composite is a wettable composite system.

研究了不同浸渗方式的流体静力学差异，发现即使对于润湿的复合材料体系，外加压力也是保证横向浸渗顺利进行的必要条件。

The results showed that good synergism of all composite systems could be seen, especially the composite systems of anionic/cationic, anionic/zwitterionic surfactants showed better synergism than others.

结果表明：复合体系均体现了一定程度的协同性能，但阴／阳离子型、阴／两性型表面活性剂复合体系的增效协同性能更好。

Firstly, a composite antifouling composition is prepared by taking super-fine tourmalin powder and nano zinc oxide powder as materials and coating a layer of silicon dioxide on the surface of the super-fine tourmalin powder and nano zinc oxide powder, and the nontoxic conductive marine antifouling paint is prepared by dispersing composite antifouling composition, film-forming matter, conductive powder and addition agent.

以超细电气石粉末与纳米氧化锌粉末为原料，在其表面包覆一层二氧化硅，制得复合防污剂。然后以复合防污剂、成膜物质、导电粉末、助剂经过分散制成无毒海洋防污涂料。

In addition to complex anion crowd carried by organic functional group, there were many kinds of mass point like aluminum, silicon, zinc and rare earth elements et al in composite elastic material, and there were replaceable cation as well as anion; besides, all cation kept rather distant each other. It was not easy to crystalize in composite elastomer because of the block of organic molecule.

在复合弹性体材料中，除了存在有机官能团所带有的络阴离子群之外，还同时存在铝、硅、锌和稀土元素等多种质点；存在可以置换的阳离子和阴离子，并且各种阳离子都保持相当远距离；由于有机分子的阻挡，复合弹性体内不易析晶。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。