轴流
- 与 轴流 相关的网络例句 [注:此内容来源于网络,仅供参考]
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But ECT technology has the following characteristics: 1 the measured capacitance and its change induced by the measured material concentration variation are very small, but the stray capacitances of co-axial screening cable and CMOS switches are relative very large, so the capacitance detecting is easily affected by the stray capacitances, 2 the electric fields in the sensors detecting region is affected by the permittivity distribution, non-uniformity of the space responsive sensitivity is very high, and the image reconstruction is undetermined.
但由于ECT技术中,首先所检测的微电容量及其因物流相含率的变化所引起的变化量很小,而由相关的连接同轴屏蔽电缆与切换CMOS开关所引入的杂散电容远远大于测量电容,微电容的测量容易受杂散电容等的影响;其次,多电极电容传感器测量区内的电场受介质分布的影响,且测量区内的空间响应灵敏度极不均衡,其影响图像重建的不确定性;其三,ECT中的图像重建,由于其是一个欠定问题的求解,在迭代求解方法中,迭代的初值影响迭代过程收敛到近似解的速度;其四,对于气/固两相流应用而言,由于ECT系统在线标定的难以实现,管壁磨损等因素的影响制约该技术应用于生产工艺中气/固两相流的长期连续检测。
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The results show that the increasing Marangoni number will lead to more nonlinear distribution of temperature field, but streamfunction of the cell center; vorticity on the wall and peak value of velocity diminish first, then increase, finally lose stability. The thermocapillary convection in the whole liquid zone appears to get stronger along with the augmentation of Prantal number. The effect of increasing of Biot number on temperature and flow fields is not obvious although the convection is strengthened a little. As increasing the aspect ratio A, thermocapillary convection induced by temperature gradient and liquid viscosity becomes stronger.
结果表明:温度场的非线性分布随着Ma数的增大而加剧,但对流涡胞中心流函数、壁面涡量和轴向、径向速度峰值并不象温度场随着Ma数的增大而单调增大,而是先减小,然后增大,最后失稳,表明Ma数对热毛细对流的影响比较复杂,针对不同的物理模型,会导致完全不同的流态;Pr数愈大,流体的热扩散能力在粘性扩散与热扩散能力之比中愈占支配地位,当Ma数一定时,热毛细对流随Pr数的增大在整个液体区域内有增强的趋势;Bi数增大,热毛细对流有所增强,但不甚明显;A的增大使得由温度梯度和流体粘性诱导的热毛细对流随之增强。
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The instability originated in the upper R_B-like convection zone develops to larger region with the increase of Grashof number, and the number of non-axi-symmetric circulations decreases. When Grashof number exceeds another critical value, cooling air may invade the cavity and flow toward the shroud, the circulations decrease to one pair occupying the whole cavity in radial, thus these two zones are merged into one. The core structures in the cavity rotate against the disks, while the structures keep no change at the case of periodic oscillatory flow. With the Grashof number rises, the flow undergoes stable, periodic, periodic with cool air invading, quasi-periodic and ultimately to chaos.
离心浮升力是造成非等温轴向通流旋转盘腔内流动不稳定的主要因素,而哥氏力的存在加剧了流动不稳定性,导致流场失稳提前发生,而且在哥氏力的作用下流线发生偏转,盘腔内r-θ面出现了旋向相反的对涡,流动结构更加复杂化;随离心浮升力的继续增加,r-θ面的对涡减少,当其超过某一临界值后部分冷流体侵入盘腔,对涡减少至一对,而且沿径向充满整个盘腔;此后随离心浮升力的增加对涡的数量不再变化;r-θ面的对涡相对于盘面周向移动,但是形状基本保持不变。
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The NSE immunohistochemical reaction could be shown in the cell bodies and axons of motorneurons after 4 h of reperfusion, and the distribution of NSE in the cell bodies was divergent, rare and disintegrative, the axons were swollen and vanish.
再灌流4小时,脊髓前角运动神经元胞体和轴突内NSE反应阳性,胞体内NSE散乱、稀疏和溶解,轴突肿胀、扩大、消失。
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The rainflow counting method can be used to count the cycles in the multiaxial loading.
多轴随机载荷的寿命预测中,如何计算载荷循环次数是其基础,目前广泛使用的是雨流计数方法,现在已能成功的应用于多轴载荷的情况。
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Hydraulic pressure part consists of cylinder body around having some axial direction cylinders, pole piston, matching stream canister and timing equipment. Pyramidal difference decelerate part is composed of twin inner bevel wheel with difference of 2-toothes, twin outer bevel wheel without tooth difference and skew shaft etc.
液压驱动部分由周围均布有若干轴向缸的缸体、柱塞、配流筒及调速装置等组成,减速部分由二齿差内锥齿轮副和零齿差外锥齿轮周向限制副及歪轴等组成。
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The research results show as follows: if the gas pressure is fixed, the seepage velocity of briquets drops at first and rises later with increasing axial stress, and increases after peak stress.
研究结果表明:恒定瓦斯压力时,在某一围压下,峰前渗流速度随轴向应力先减小后缓慢增大,到达峰值应力后,随轴向应力的减小而增大。
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In this paper, model of vehicle with double axes is used to study the vibrations of vehicle-bridge dynamic interaction system. The active control law based on linear optimal control theory is designed, In which the transient power flow and displacement at mid-span of bridge are accounted separately.
本文采用能更加逼近真实车辆的双轴车辆模型,应用线性最优控制理论,采用可有效控制一阶振型的双臂弯矩控制系统,分别以双轴车辆输入桥梁的瞬时功率流和桥梁的跨中位移振动响应为目标函数来设计控制律。
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The effects of such parameters as temperature, pH, feeding rate,concentration, [NH_3]_T/_T molar ratio, surfactants and agitation, on the morphology and size of the particles, were studied and conclusions obtained are as follows:(1) The morphology and size of the particles are mainly decided by the species of nickel oxalates present.(2) Speeding up dissolution-recrystallization process benefits the preparation of the particles of being composed of a single species with uniform morphology and high aspect ratio.(3) The variations of nucleation and growth supersaturation under different conditions have definite effects on the morphology and size of the particles.(4) Adding PVP25 at a proper amount is beneficial to the preparation of fibrous nickel oxalate particles with high aspect ratio. 3 The formation mechanism as well as the morphology and size control of fibrous cobalt oxalate particlesThe cobalt oxalate particles with fibre morphology were prepared using CoCl_2 solution and mixed(NH_4)_2C_2O_4, NH_3·H_2O solution by a double jet process.
研究了温度、pH值、加料速度、浓度、[NH_3]_T/_T摩尔比、表面活性剂及其添加量、搅拌等对颗粒形貌与粒度的影响,主要结论为:(1)草酸镍化合物种类是决定颗粒形貌与粒度的最主要因素;(2)提高陈化中溶解—再结晶速度,有利于得到物相单一,形貌规整,轴向比大的粉末;(3)不同条件下,颗粒形核与生长过饱和度改变,也会对粉末形貌与粒度产生一定影响;(4)适量添加PVP25有利于大轴向比纤维状草酸镍的制备。3纤维状草酸钴的形成机理及其形貌与粒度控制采用CoCl_2溶液与(NH_4)_2C_2O_4和NH_3·H_2O混合溶液并流加料合成的方法,研究了纤维状草酸钴的制备。
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The actual content includes: Ventilates the way the choice, the gross structure plan determination, the axis design and the examination computation, impeller's design examines and examines the computation, guide vane's design calculation, sparse class cover, diffuser and current collector design and choice, shell's design, ventilator muffler design, electrical machinery's choice and fixed way design, components and so on shaft coupling, key and flange shaping examinations.
具体内容包括:通风方式的选择,总体结构方案的确定,轴的设计和校核计算,叶轮的设计和校核计算,导叶的设计计算,疏流罩、扩散器和集流器的设计和选择,壳体的设计,通风机消声装置的设计,电机的选择和固定方式的设计,联轴器、键和法兰等零件的选型校核。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。