Chromium-plating of ball influence the ball service life and strength of ball arced groove;
球体镀铬对圆弧槽强度及其使用寿命的影响
Whet device development of small size and hard seal ball valve;
硬密封球阀球体研磨装置
Using the analytical method and the finite element method, the paper has calculated curve characteristics of transborehole synchronous apparent resistivity survey for spheroids and two-dimensional tabular bodies, and presented an imterpretation method.
用解析法和有限元法计算了球体、二维板状体跨孔同步视电阻率测量曲线特征，并提出解释方法。
First-order heaving force and pitching moment on spheroid in the stratified ocean are calculated with boundary-element-method.
球体在水下运动时会受到内波对其产生的作用力 ,从而产生大幅度的垂荡和纵摇运动 ,影响其操纵性 ,但这一方面的研究还很不成熟 。
Dynamic formation and bifurcation of cavitation in an incompressible sphere;
不可压缩球体空穴的动态生成和分叉
The object considered is a uniform,rough,rotating sphere.
在对均匀密度的粗糙球体和常用的窄带散射函数模型进行分析的基础上,研究了对于球体模型的宽带扩展函数(WBSF)及其与球体相关的参数,讨论了通过使用小波变换方法来处理模型中存在的奇异值,最后,通过计算接收信号的小波变换对宽带扩展函数进行估计。
This paper presents the method of drawing shade and shadow of sphere based on the principle of projective geometry.
目的为确定球体在有灭光线下的透视阴线,和画球体透视阴影的作图方法,使曲面体的透视阴影画法得到进一步完善。
CdS microspheres were prepared by hydrothermal method.
本文以水热法制得了CdS微球体,采用XRD、SEM、TEM等测试手段对产物进行了表征。
Objective To study the release characteristics of fluorouracil-loaded carboxymethyl chitosan microspheres(Fu-CMCS-MS) in vitro.
目的探讨对以羧甲基壳聚糖为载体的氟尿嘧啶微球体外释药特性的影响因素。
Objective To prepare carboxymethyl chitosan microspheres of fluorouracil(FU-CMCS-MS), and measure the releasing of FU-CMCS-MS in vitro.
目的 探讨羧甲基壳聚糖包药微球体的制备及体外释药特性。