查询词典 convergence angle

Influence of the convergence angle on light transporting in biological tissues.

光源会聚角对生物组织光传输问题的影响。

According to the numerical calculation,the influence of convergence angle on the light field in biological tissues and light field reflected from biological tissues are discussed.

在此基础上，通过大量的数值计算讨论了光源会聚角对组织内光场空间强度分布和组织漫反射场的影响。

If two nondiffracting beams with small difference of convergence angle and common axis exist at same time, they will interference with each other to form a light field structure that varies periodically along the propagation direction. It is a new kind of space distribution of light beam.

如果两束汇聚角略有不同的同轴无衍射光同时存在，则它们相互之间叠加干涉后产生一种纵向呈周期变化的光场结构，这是一种新的光束空间分布，这种光束在横向仍是一种同心环光斑，可用于精密对准。

Results show that with the increase of the convergence angle,light field in biological tissues and the reflectance enhanced in the beginning,after reaching the peak value,its intensity decrease quickly and the position of its maximum deflects from central position.

结果表明：随着光源会聚角的增大，组织内光场分布和组织漫反射的分布趋于集中，当大于一特定角度之后，光场强度的分布区域迅速扩大，强度迅速下降，同时强度出现极大值的位置开始偏离中心位置。

The effect of age, gender, diagnosis, body mass index, pelvic height difference, joint line convergence angle, and the magnitude and direction of malalignment on the discrepancy in the observed mechanical axis deviation with use of the two methods was assessed.

本研究对两种方法中年龄、性别、不同下肢疾患、体重指数（kg/cm2）、骨盆高度、JLCA、下肢畸形的严重程度和方向对MAD的影响分别进行了评估。

In order to achieve a tradeoff between vectoring and unvectoring state, the proposed parameters of DTN are: Z=3~4, secondary injection flux is about 3%, cavity divergence angle is about 10°, cavity convergence angle is 20°~30°, injection angle of secondary is about 30° by counterflow injection.

为了实现DTN在推力矢量和非推力矢量下都有较好的内流综合性能，所建议的设计参数为：落压比为3~4，引射量为3%，凹腔扩张角为10°左右，收敛角在20°~30°，引射角度为30°逆流引射角(β=30°)。

The convergence angle was mostly uneven and had clear edges.

部分凹口相邻肺有肺气肿改变，呈低密度改变。

Methods Using FC and conventional Doppler echocardiography methods,the effective regurgitant orifice area was calculated in 48 patients with isolated aortic regurgitation and a flat proximal flow convergence angle.

选择近端血流会聚角呈水平型的单纯性主动脉瓣反流患者 48例，分别应用血流会聚法和常规多普勒超声法测量有效反流口面积。

To get the steady interface, the ratio of coextrusion flow length to height is at least l-1.5._The role of smooth flow zone is important to reduce the pressure-fall. The higher surface quality of the fluid path can make the velocity field more uniform and the interfacial offset less. However, the layer interface position was almost unaffected by the convergence angle, so for the convenience of die manufacture and extruder\'s collocation, it is fit to make the contact angle as 90°with smooth corner.

在模具结构参数中，共挤出流道的长度和模具壁面光滑程度对界面有重要的影响，根据计算结果得到了方形流道共挤出段长度与高度比的取值范围；而模具入口收敛角对界面的影响不大，在实际生产中为了模具制造和共挤出机布置的方便，可采用圆滑过渡的90°入口角。

In view of the tedious and mistakable manual calculation in measuring Gauss projection,coordinate zone transformation and meridian convergence,an itera-tive approximation method is adopted and programmed by BASIC to imple-ment the direct and converse calculation of Gauss projection and computer cal-culation of meridian convergence angle.

针对测量工作中人工进行高斯投影、坐标换带和平面子午线收敛角计算非常麻烦又容易出错的问题，采用迭代法趋近求值，用BASIC语言编制了相应的计算机程序，实现了上述计算。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。