弯曲点

The microstructure and mechanical properties of the shell of Conus betulina Linnaeus are investigated.

对具有交错纹片结构的黄米螺壳进行压缩和三点弯曲实验。

It is found that the maximal bending failure load of foam core sandwich was enhanced by stitching.

实验表明缝纫提高了泡沫夹层板三点弯曲破坏载荷。

The bending of rectangular plate is divided into the generalized statically determinate bending and the generalized statically indeterminate bending based on the analysis of the completeness of calculating condition at the corner point.

在分析角点求解条件完备性的基础上将矩形板弯曲划分为广义静定问题和广义超静定问题。

Moreover, the pre-treatment and post-treatment processes for the steel sheet subject to continuous zinc plating were also discussed. Results showed that the alkaline zincate plating process had many advantages over conventional alkaline cyanide zinc plating process, including high current efficiency, good throwing power, and strung adhesion strength of the coating.

结果表明，该工艺电流效率高（锌离子含量16~24g/L时，电流效率可提高约20%，镀液均镀能力好（宽度为1m的镀锌薄板，中心点厚度与边缘厚度差不大于10%，镀层结合力优良（将试片180°任意弯曲，镀层无起皮、剥落现象；在烘箱中加热至180-200℃，保温60min，冷水中急剧冷却，镀层无突起、鼓泡、剥落现象），所镀得的镀锌薄钢板适合于钝化和彩涂等后处理。

Mechanical characteristic of CT is studied. The model of bending, internal pressure strength and external collapse strength, diametric growth and stuck-point of CT is established.

研究了连续油管的工作力学特性，建立了连续油管弯曲、抗内压强度和外部挤毁压力、直径增长、纵向伸长及卡点位置分析计算模型。

In order to investigate the static mechanic properties of wood-bamboo composite city bus- floor, elastic modulus and strength of component materials——poplar veneer, bamboo shoot and wood-bamboo composite city bus-floor were measured by uniaxial tension, electrometry and three-point bending.

为了考察木／竹复合城市客车底板的静态力学性能，本论文利用单向拉伸法、电测法和三点弯曲试验法对组分材料——杨木单板、竹片以及木／竹复合城市客车底板的弹性模量和强度等进行了综合研究。

Results of histology, SEM and three-point bend biomechanical competence demonstrated that XW630 has promoting osteogenic action obviously. The effects of XW630 for prevention and treatment of osteoporosis and osteoporostic fracture were effectively and much better than estrone.

组织学、扫描电镜及三点弯曲力学测试结果表明：XW630具有促进成骨的作用，可以有效地预防和治疗骨质疏松症及骨质疏松性骨折，其作用优于雌酚酮。

Both three and four point flexure tests are supported.

支持三点和四点弯曲试验。

If every hinge point of a fold in profile are connected, we can get an imaginary plane which divides the fold symmetrically. This imaginary plane is known as axial plane. The geometrical characteristics are used to classify folds.

如果在横断面上将一个褶曲各弯曲层上的枢纽点连接起来，便可得到一个对称分隔褶曲的标志面，这个标志面叫做褶皱轴面，可以用褶皱轴面的几何学特征来作褶皱分类。

So this paper shows an effective method based on an idea that uses motion compensation, general second-step keystone transform twice and at the same time, finds an isolated point and adopts WVD transform to estimate Doppler parameters for removing range walk and curvature. And what is more, the detailed deductions are given in this paper.

该文提出了一种基于利用运动补偿并两次利用广义二阶keystone变换同时结合利用孤立的散射点进行WVD变换估计多普勒参数的方法来分别消除距离弯曲和距离走动并最终对舰船成像。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。