SZG series double cone rotating vacuum drier's main machine is double cone tank, let steam or heat water inside sealed jacket heat the inner shell in vacuum state, the hot transferred from inner shell to dump material, make water of the dump material gasify, low speed motor drying the tank along, make material up and down, from inside to outside, and change the heated surface, at the same time, vapour is taken out continually through vent-pipe of vacuum pump, increase the speed of drying, attain the purpose of uniformity drying at last, it is in conformity with the requirement of GMP.

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The heat generation curves of seven rubber materials used in tires with the changes of temperature have been obtained by using Dynamic Mechanics Analysis technique on NETZSCH DMA242 instrument, knowing that the heat generation of every other rubber materials except inner liner rubber changes lightly alone with the temperature within 10℃～80℃. According to the Fourier law, the heat transfer coefficients of tire rubber are measured by stable method on self-made experiment instrument. The coefficients changes lineally within 20℃～80℃ and the relation formulas λ=λ〓+bt are given out attached with λ〓 and b. The specific heat of tire rubber are measured on Differential Scanning Calorimeter NETZSCH DSC204 and the relations with temperature are linear and the formula is c=c〓+bT, where c〓 and b gained from experiment result data are presented in the paper. The heat convection coefficients on the surface of rolling tire are measured according to the principle of heat-mass transfer analogy principle after simplifying rolling tire into rotating disk with straight movement on wind channel. The relation with rotation speed of disk is linear as h=5. 399+0.0258n and the relation with straight line speed of tire is linear too, h=

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The analysis of experimental data was used to research the influence of high speed rotation on maximum thrust and maximum pressure of motor, and the decreasing rule of equivalent nozzle throat area in high speed rotating condition.

通過對試驗數(shù)據(jù)的分析和處理研究了高速旋轉對發(fā)動機最大推力、最大壓強的影響97无码免费人妻超级碰碰碰，以及在高速旋轉條件下噴管等效喉部面積的減小規(guī)律欧美激情A片在线播放，運用零維內(nèi)彈道計算模型擬合出了動態(tài)燃速隨裝藥燃面相對半徑和轉速變化的經(jīng)驗公式。

When the reel on the reel diameter capillary gradually increases, like turning round trip, using the lever principle, continuously variable belt tensioning force the initiative under the round rotating movable pulley disc produce axial movement of the work of change with diameter, pipeline so that the speed of reel hair always synchronized with the tractor forward speed.

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Rotating platform is a normal stage machine. In view of its speed regulation system, a scheme of digital AC speed regulation system base on permanent magnet synchronous motor is presented.

旋轉臺是一種常用的舞臺機械設備，本文針對轉臺調(diào)速系統(tǒng)九一高潮视频国产在线，提出了基于永磁同步電機的數(shù)字化轉臺交流調(diào)速系統(tǒng)的實現(xiàn)方案手机看A片小视频。

Based on the above study, a program is developed which calculate the modeled subgrid stresses, and is applied to simulate the turbulent flow in a plane channel. The computational result is compared with the data extracted form a DNS database, and the agreement is satisfactory. A numbers of physical phenomenon has been reproduced in the simulation, including hairpin vortex and counter-rotating rolls in near wall region, intermittent vortex structure, the maximum of pressure clustering in wall area and the high-speed fluid sweep into the low speed fluid, and the ability of the LES to simulate turbulent flow is well shown.

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Open-end jet spinning is a new spinning method, which works in such a way that a high-speed air current forms the open end with the aid of roller drafting, while a high-speed rotating air current inserts twist to the sliver.

自由端噴氣紡紗是以高速氣流輔以羅拉牽伸而形成自由端国产99社区，并利用高速旋轉氣流對須條進行加捻的一種新型紡紗方法。

In this paper, set the balancing disk labyrinth seal in vibration test-bed for a large-type compressor rotor as research object, CFD method is adopted to analyze the internal flow field of 3-D labyrinth seal of rotating shaft under the condition of different relative eccentricity with constant speed and variable pressure difference and with constant pressure difference and variable speed.

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Owing to pump, when the liquid flow out of the impeller, its speed energy and stress energy both develop much, the liquid debarred by the impeller , most speed energy is transferred to stress energy ,and then it is transported through pipeline .At this moment ,the entry of the impeller become vacuum or low-pressure , hydraulic pressure effect on the liquid in the absorbing pool, and the liquid is pulled into the entry of the impeller , so ,the rotating impeller continuous inhalants and Drainage liquid.

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