查询词典 vortex

Pyrology ; Vortex tube ; Energy separation ; Nozzle ; Temperature effect

热工学；涡流管；能量分离；喷嘴；温度效应

Keywords: pyrology, vortex tube, experimental investigation, rectifier,energy separation performance

对整流器及其叶片角度对涡流管能量分离性能的影响，整流器对涡流管的长径比的影响进行了实验研究，并将自行设计加工的带有上述整流器的涡流管与artx公司生产的同类型涡流管进行了对比实验。

This thesis explores the feasibility of using synthetic jet actuators for the propulsion of small underwater vehicles. This work was inspired by the widespread use of pusatile jet propulsion by sea creatures such as squid, salp, and jellyfish. The jets created by these animals utilize vortex rings for thrust production.

由於养殖渔业具有短期供给缺乏弹性、易腐败、不易储存等特性，更因为养殖业的交易性质，大多是在货到当天立即透过价格的调整，将到货量全部结清，所以数量与价格的关系，应该是数量影响价格，故本研究透过逆需求系统求算所有参数。

At low temperature, the system undergoes three phase transitions. With the increase of the current, from the moving vortex glass, the system is first driven to the moving Bragg glass, then to the moving Smectic, and finally melts to the moving liquid.

在低温下系统经历了三次相变：随电流的增加，系统首先从运动涡旋玻璃相转变为运动Bragg玻璃相，再转变为运动Smectic相，最后融化为运动液体相

The factory had polish production equipment, complete testing equipment and more than 160 sets of special equipment, such as vacuum induction furnace, medium-frequency induction furnace, centrifugal pouring machine, automatic welder, direct-reading spectrocomparator, endoscope and vortex flaw detector, etc., with the yearly production of 2,500 tons of centrifugal tube casting and 2,000 tons of precision casting.

工厂生产装备精良、检测设备齐全，拥有真空感应电炉、中频感应电炉、离心浇注机、自动焊机、直读光谱仪、内窥镜、涡流探伤仪等各种专用设备160余台套，具有年产离心铸管2500吨、精密铸件2000吨的生产能力。

The intensive southwest wind jet stream accompanied by the depression is not only the condition of development and maintenance of low vortex and MCC but also the transportational zone of lots of water vapor and non-stable energy.

在MCC的活动中，低空急流始终与低压相伴，急流中心强度达20m/s，急流轴较为宽广和深厚，指向低涡。在水汽和能量的聚集区，形成MCC。

Numerical simulation for this event is performed using the non-hydrostatic, two-way interactive, triply nested grid mesoscale model MM5 and the structure of the inverted typhoon trough is studied. Furthermore, the formation and development mechanism of the inverted typhoon trough as well as the meso-scale vortex are discussed through the budget of vorticity equation.

采用双向三重嵌套网格非静力模式MM5对这一过程进行了数值模拟，研究了台风倒槽的中尺度结构特征，并通过涡度收支探讨了台风倒槽及中尺度低涡发生发展的物理过程。

The flow rule and energy separation phenomena happened in vortex tube are unconventionally complex.

发生在涡流管内的流动规律以及由此所产生的能量分离效应异常复杂。

Untapered sweep wing ; vortex control ; high angles of attack ; numerical simulation

后掠翼；涡控制；大迎角；数值模拟

The changes include:(1) Put the urediniospores into the tube with two steel balls and 1. 6 g/L Chelex-100,the uredinia may be picked up with airing host tissues.(2) Add KOH into the extraction buffer instead of NaOH and vortex the tube violently for 30 min.(3) Prick a hole under the bottom instead of picking out of the steel balls, then centrifuge the tube to toss the liquid into the sheathed tube.

改进的 内容包括：(1)在有二钢珠和1.6 g／L Chelex的离心管中加入夏孢子，夏孢子可以来自带有风干寄主叶肉组织的夏孢子堆；(2)在离心管中加入KOH而不是NaOH，然后剧烈斡旋30 min；(3)将离心管管底穿一小孔，套上一新离心管，短暂离心甩出内容物。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。