从轴

The problem of noise of the fan is studied with the non-linear theory, and pressure pulsation of axial flow fan's inside flow was measured by dynamic pressure sensor, the gas-structure coupled noise of contra-rotating axial flow fan was studied through a

摘要用非线性动力学的理论对风机噪声问题进行了分析，同时运用实验手段测量了轴流风机流场内部流动的压力脉动，从全新的角度研究了对旋风机的气固耦合噪声。

The axial profiles of the worm thread at different sections can be obtained from the gear geometry, lofting the profile curves produces the NURBS (non-uniform rational B-spline) surface of the worm surface.

轴向剖面蠕虫线程在不同路段可从齿轮几何学放样的轮廓线产生的NURBS表面的蠕虫表面。

It was then that I drew the loose iron spindle from the shrunken wood, and saw my first husband sink with one horrible cry into the black mouth of the well.

就在这个时候，我从那陈旧的木架上抽掉了那松动的铁轴，这就看到我第一个丈夫发出一声可怕的叫喊，落到那老井的黑魆魆的嘴巴里去了。

The research result cannot satisfy the need of engineering design.In this paper, according to practical liquid differential equation ,allowing for moving rule and characteristic of moving field of vertical vortex , simplifying N-S equation, I have studied the discipline of condition, velocity and pressure of vertical vortex and analyzed some theory solutions such as plain vortex solution and solution in axial direction.

本文从实际流体运动微分方程出发，结合立轴旋涡运动规律和流场特征，采用对称恒定性假设，简化N—S方程，研究了立轴旋涡的水流流态、速度与压力的分布规律，分析了若干理论解，如平面螺旋流解、轴向流解等。

Dwarp control:this motion delivers warp to the weaving area at the required rate and at a suitable constant tension by unwinding it from a flanged tube known as the weaver's beam.

经纱控制：此运动将经纱从一个被称为织轴的带边的筒管上退绕下来，按所需的量和不变的张力将经纱送入织造区。

Warp control: this motion delivers warp to the weaving area at the required rate and at a suitable constant tension by unwind ing it from a flanged tube known as the weaver s beam.

经纱控制：此运动将经纱从一个被称为织轴的带边的筒管上退绕下来，按所需的量不变的张力将经纱送入织造区。

Warp control: this motion delivers warp to the weaving area at the required rate and at a suitable constant tension by unwinding it from a flanged tube known as the weaver s beam.

经纱控制：此运动将经纱从一个被称为织轴的带边的筒管上退绕下来，按所需的量不变的张力将经纱送入织造区。

Of a force; the measure of a force's tendency to produce torsion and rotation about an axis, equal to the ''.

转矩，力矩一种测量产生扭转和绕轴旋转趋势的力的单位，等于从旋转轴到力作用点的旋转矢量

The most machines and facilities, such as 5 axis CNC tool grinding machines and universal tool measuring facilities imported from Germany.

所使用的主要设备，如五轴联动CNC精密刀具磨床、精密万能刀具测量仪等，都是从德国进口。

The hollow-axis motor drives the offset nozzle and rotates the arc on the tip of wire at high speed,so as to ensure enough penetration into the sidewalls in narrow gap welding .

在该系统中，焊丝穿过电机的空心轴后从导电嘴的偏心孔送出，电机带动导电杆和偏心导电嘴旋转，从而使焊丝端部的电弧以一定直径高速旋转，以保证窄间隙焊接接头具有足够的侧壁熔深。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐