Consider a ball that is spinning about an axis perpendicular to the flow of air across it (see left).
观察一个旋转轴与空气流动方向垂直的足球(见上图)。
This implies that the disturbance increases with distance along the axis of the swirling flow, but it does not grow with time.
这一假定意味着扰动沿涡旋流动的轴向随距离的增长而增长，但不随时间而增长。
Imported original axis flow fans, 316l stainless material mould press shaped drying box, real never rust steel from Japan which guaranteeing the running characteristic of whole machine.
日本进口原装轴流风机，316L不锈钢材料模具压形的烘干箱，真正永不生锈，保证了整机的运转性能。
Heat transfer characteristics and flow behaviors of elliptic cylinders with different axis ratio kin crossflow are investigated experimentally.
对横掠不同长径比的椭圆管的换热和流动特性进行了研究。
Changing and swing of the axis of flow power is normality.
该河段水流的动力轴线的变化和摆动是常态。
The position of power axis of flow is determined by main channel when runoff is small, while the change law conforms with the law of rectangular section when runoff is large.
当小流量时水流动力轴线的位置取决于主槽的位置，当大流量时水流动力轴线的变化规律接近矩形断面的情形。
As an attempt in this paper, the available related judgment parameters are found based on the systematical analysis of characteristic curves of flow dynamic axis, bank line and levee line.
作为尝试，文中基于对水流动力轴线、自然岸线、堤防线等河势特征曲线进行系统的频率分析，提出了可用的相关判定参数。
The paper focuses on the study of dynamics parameters that include flow rate, power consumption, torque and axis force of twin screw pulping extruder.
本文主要对双螺杆磨浆机的动力学参数(流率、功耗、螺杆扭矩和轴向力)进行了研究。
The damper plate rotates around an axis rod to control the flow of air through the vent pipe.
这个风挡通过中心轴控制旋转来让通过排气管的空气流动起来的。
The results showed that, the arrangement of burners on the front and back walls led too val rotation flow pattern, the long axis of which directed diversely along with the height of furnace.
计算结果表明：由于燃烧器布置在前后墙，使得燃烧器喷口连线成矩形，从而使得炉内气流流场均为椭圆形，且椭圆的长轴沿炉膛高度方向不断变化；
The flow properties including chemical species distribution along axis of the nozzle were also presented.
并给出计算条件下喷管轴线上的物理量和化学组元分布。
Based on experimental data, through dimensional analysis of the influence factors of channelling flow, put forward the computative formula for velocities along axis after channelling.
依据试验资料，通过对挖槽水流影响因素的因次分析，提出挖槽后轴线处的流速计算式。
Thrust misalignment in parabolic nozzle is investigated for the situation where the gas flow is misaligned with respect to the axis of the supersonic region of the nozzle.
研究了当气流偏离抛物型喷管超音速段对称轴时所引起的喷管推力偏心。
The interior circulation orientates along the main axis of the building and makes the flow of different spaces inhabitable.
房屋的内部朝向和建筑的主朝向一致，使得建筑的每一个空间都是可居住的。
Then, the experiment of flow separation in the nozzle was done with a solid rocket motor, and the inside pressure data along the axis of the nozzle was gotten.
然后，利用某型号固体火箭发动机进行喷管分离流试验，测得了喷管壁面上沿轴向的压强分布数据。
The experimental results show that the tangential velocity and axial velocity components of the swirl flow along radial were divided into the near-axis, the transition and the near-wall zones.
实验表明：这类等离子体反应器中，旋流切向速度分量和轴向速度分量径向分布划分成近轴、过渡和近壁区。
A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.
在可密封的开口和底部开口之间设置一第一向内延伸的环形肩部，该环形肩部沿着外壳的纵轴线限定出一流通通道。
The inlet passage (28) leads to the impeller (34) and directs fluid flow substantially perpendicular with respect to an axis of rotation (38) of the impeller (34).
并且其中，该入口通道(28)通向该叶轮(34)并且引导流体基本上垂直于该叶轮(34)的一条旋转轴线(38)流动。
In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube.
本文讨论了轴对称磁力线管中太阳风从亚声速和亚阿尔文速度加速到超声速和超阿尔文速度的过程。
The main products are: JP Series winch irrigation system, the transfer of irrigation system, PYC series of vertical rocker-type nozzle, QZ, QH, QSZ, QSH series axis (mixed)-flow submersible pump.
主要产品有：JP系列绞盘式喷灌机、移管式喷灌机、PYC系列垂直摇臂式喷头、QZ、QH、QSZ、QSH型系列轴（混）流式潜水电泵。
The main products are: JP Series winch irrigation system, the transfer of irrigation system, PYC series of vertical rocker-type nozzle, QZ, QH, QSZ, QSH series axis (mixed)-flow submersible pump.
主要产品有：JP系列绞盘式喷灌机、移管式喷灌机、PYC系列垂直摇臂式喷头、QZ、QH、QSZ、QSH型系列轴（混）流式潜水电泵。
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