效率工

Efficiency of cyclone separator is analyzed for different operational and constructional condition.

核心提示：对下排气旋风分离器在不同运行工况和不同结构因素下的分离效率进行了实验研究，并分析了不同结构因素下分离器内的气固运动规律。

This dissertation has analyzed the full-load speed characteristics of the diesel engine、some load tempo characteristics and characteristics of variable pump at first.

本文首先分析了发动机的全负荷速度特性、部分负荷特性和变量泵在不同的工况下的效率特点。

Based on Reynolds stress model, the gas flow pattern and efficiency and its varieties have been discussed when Gas Exit Tube was incline.

本文采用雷诺应力模型，在排气管发生倾斜的情况下，研究了分离效率和旋风分离器内部流场变化的情况，并和正常工况进行了对比。

The trans-critical CO2 air conditioning system has almost the same efficiency as the halocarbon system, and is suitable to be used in automotive air conditioning system and heat pump system.

以跨临界CO2为工质的制冷系统具有与氟里昂系统相当的效率，适合应用于汽车空调系统和热泵系统。

The tests showed that the tension of each hoop cable and radial cable distributed unevenly under various working conditions,because of the friction between hoop cable and joints.Compared with the traditional joints,using new joints in structure could make the friction between hoop cable and joints reduce obviously,and friction loss on hoop cable at joints was small.

试验表明，由于环索与节点间存在摩擦，使得各工况下结构各圈环索和斜索张力分布不均匀；与传统节点相比，采用新型节点的结构环索与节点间的摩擦大幅降低，环索预应力损失较小，预应力传递效率更高。

The physical simulations are performed to investigate the behavior of dynamic recrystallization in W18Cr4V high speed steel and H13 hot-work tool steel during hot deformation.

研究结果表明，对于工模钢流变应力的预测，最优的BP人工神经网络结构为3-9-10-1；采用BP人工神经网络对流变应力进行预测比传统的回归方法具有更高的精度和效率。

First super-low specific-speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low; Secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. Therefore the H ~ Q characteristic curve is often hump-shaped, and at the low-capacity operating condition the instability often occurs; Thirdly the centrifugal pump at high-capacity operating condition is easy to overload because the N ~ Q curve appears a rising trend.

首先由于它的扬程较高、流量较小，所以它的流道狭长，圆盘摩擦损失较大，效率相对较低；其次由于它的流道扩散较严重，易在叶片进口产生回流和在出口产生脱流，扬程流量特性曲线易出现驼峰，在小流量工况下易产生不稳定现象；第三，由于其功率流量曲线呈现上升趋势，在大流量区运行时电机易过载。

Advocates of temping also argue that the traditional market for managers—and particularly for chief executives—is hopelessly inefficient.

临工倡导者也认为传统的经理市场，尤其是行政总裁，其效率是无可救药的低下。

The pinch point temperature differences analysis method was introduced in this paper, the major equipments of system was designed in term of the guide line that the best general efficiency of cooling and heating mode should be achieved.

本文首先按照使制冷制热两种典型工况下综合效率最佳的原则，利用挟点温差分析的方法设计了系统的主要部件。

Wan Zhongmin ,Liu Wei, Zhang Liang, Ming Tingzhen （College of Energy and Power Engineering, H uazhong University of Science and Technology, Wuhan 430074）The operational behavior of small-scale flat-plate type capillary pumped loop at high heat fluxes was analyzed. The total pressure loss along the loop and maximum capillary pressure of the evaporator wick for different working fluids were obtained.

引言毛细抽吸两相流体回路是一种利用液体工质的相变进行传热传质的两相热控系统，具有结构简单，安置灵活，传热效率高，不需外加动力装置，运行可靠，传热温差小，热传输距离长以及传热能力强等优点，使其成为航空航天热控技术的有效方式[1 ]。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。