查询词典 helical motion

Based on theory analysis and numerical calculations, some valuable conclusions are put forward, and some problems in early investigations are found out. Therefore, the results enrich the helical vortex theory and also clear the way from the helical vortex theory to its engineering application.

通过本文的理论分析和数值计算，获得了一系列有价值的研究结果，完善了螺旋涡理论，奠定了该理论工程应用基础，同时发现并解决了早期研究中存在的若干问题。

By constructing a generalized function"helical solitary vortex function", the paper solves the stream function of the helical vortex tube with the help of vortex filament one, and obtains some analytical expressions for large single-vortex core and small multi-vortex core.

通过构造一类特殊的广义函数&螺旋孤涡函数&，解决了利用涡丝流函数求(来源：75AB67C论文网www.abclunwen.com)解涡管流函数问题，导出了大单和小多螺旋涡管流函数的解析解。

Does spiral movement synchronously,a nonlinear model was established by neural networks to describe the relationship between the helical groove and the milling cutter'sprofile,and according to the helical groove axial cross section to simulate the milling cutter's profile.

加工螺旋槽时，针对铣刀刃形的设计，应用包络面原理，采用神经网络方法建立了工件螺旋槽形与铣刀刃形之间的非线性关系模型，并通过工件螺旋槽端面截形模拟仿真出铣刀回转面刃形。

The results show that the beam-wave efficiency is not sensitive to the velocity spread, but is dependent on the period and depth of the helical corrugations, and that the efficiency in the present experiment may achieve 25.6% by optimizing the helical corrugation parameters.

结果表明：螺旋波纹壁圆柱波导回旋行波放大器效率对电子束速度离散不敏感，而对螺旋波纹开槽周期和开槽深度的依赖性较强；通过参数优化可望把目前实验的效率水平提高到25.6%。

Correlation between the two observers\'gradings was evaluated using analysis of Spearman. and P.05 was thought significance statistically.2 for the second objective of the study, 25 patients underwent helical 0.5mm axial CT, then the helical data was reconstructed with 0.5 mm slice width /increment and with 1.0 mm slice width /increment respectively, 15 abnormal structures of temporal bone were evaluated by a observer using a modified Likert scale, with unknown of the methods of imaging.

检验标准采用P＜0.05.2对25例耳病患者行0.5mm准直多层螺旋CT扫描，将获得的容积数据以0.5mm层厚层距和1.0mm层厚层距各行横断和冠状重建，由一位神经影像诊断医师按照改良Likert scale评分标准对两种图像独立盲法评分。

There is on difference between a crossed helical gear and a helical gear until they are mounted in mesh with each other.

在一个横渡的螺线齿轮和一个螺线齿轮之间的区别，直到他们在互相的滤网登上。

There is on difference between a crossed helical gear and a helical gear until they are mounted in mesh with each other.

因此，对两者之差越过斜齿轮和斜齿轮，直至将他们安装在网格与对方。

A double helical gear is equivalent to two helical gears of opposite hand, mounted side by side on the same shaft.

双斜齿轮是与反向的并排地装在同一轴上的两个斜齿轮等效。

There is on difference between a crossed helical gear and a helical gear until they are mounted in mesh with each other.

交错轴斜齿轮与斜齿轮之间在被安装后互相捏合之前是没有任何区别的。

In this paper, different motion states such as the accelerated rectilinear motion and curvilinear motion are simulated and the relativity between the prediction error basing on the Kalman Filter and the motion state is presented.

本文通过对不同的运动状态进行仿真实验，给出了基于卡尔曼滤波算法得到的预测误差与运动状态的关系。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？