查询词典 air pressure

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

Air Permeameter, Coefficient of Air Seepage, Air Permeability in Constant Pressure, Air Permeability in Veriable Pressure

我们从1974年开始了渗气仪的研制工作，同年试制成ZC一3型渗气仪，并用于陕西省

The results of cold-flow model test indicate:(1) the pressure drop rises with increasing air quantity and solids quantity respectively, however, much more air quantity and solids quantity minish in the same height position;(2) the pressure drop rises with increasing solids quantity;(3) the average granule concentration minishes with increasing air quantity, and rises with increasing the granule quantity in the same level position;(4) the inhomogeneity of distribution granule concentration minishes with increasing air quantity, and rises with increasing the granule quantity in the same level position.

结果表明：(1)在同一高度截面上，循环流化床反应器炉膛内压降随风量的增加而增加，但是风量过于增大反而使压降在同一截面上减小；(2)压降随初始物料量的增加而增加；(3)在同一水平截面上，颗粒浓度随风量的增大而逐渐减小，随物料量的增大而增大；(4)颗粒浓度分布的不均匀性随风量的增大逐渐减小，随物料量的增加不断增大。

The belt of this conveyor is supported by the pressure air rushed out of the holes of the air chamber into which air is blowed continuouly in a certain amount and pressure by a fan and wind adjusting mechanism. The conveyor driven by a drive mechanism conveys materials on an air cushion, thus fluid friction is in place of rolling friction between belt and support roller, reducing the friction drag.

本机是通过风机和风量调节机构连续向气室供给一定压力和流量的空气，空气通过气室盘槽上的排气孔在胶带与盘槽之间现成气垫支承，胶带在传动机构的拖动下，在气垫上运行，以流体摩擦代替托辊式胶带输送机的滚动摩擦，减少阻力，达到输送物料的目的。

And also the device was simulating. The results of cold - flow model test indicate that pressure drop rises with increasing air quantity and solids quantity respectively, however, much more air quantity will make pressure drop minish in the same height position;The average concentration of granule minishes with increasing air quantity, and rises with increasing solids quantity in the same height position;The inhomogeneity of distribution of the average granule concentration minishes with increasing air quantity, and rises with increasing the granule quantity.

冷态实验结果表明：流化床内同一高度截面与基准面之间的压差是随风量的增加而增加的，但是风量过于增大反而使同一高度截面与基准面之间的压差减小了，同时，压差是随初始物料量的增加而逐渐增加的；在同一高度截面上，颗粒平均浓度随风量的增大而逐渐减小的，随物料量的逐渐增大而增大的；颗粒浓度分布的不均匀性随风量的增大而逐渐减小，而随物料量的增加而不断增大的。

But when the flame went out, the air inside the bottle cooled and contracted . The air pressure outside the bottle was greater than the air pressure inside. That caused the egg, and some air, to get sucked inside.

但当火苗熄灭后，瓶里的空气冷却下来并开始收缩，此时瓶外的气压大於瓶内的气压，所以瓶口的蛋和部份空气便会被吸入瓶内。

The experiment results prove that the boiler coking is largely reduced and the temperature difference of two sides of horizontal gas-pass is very small, when the 330MW boiler operate, the pressure of primary hot air parison is controlled beyond 12.0～12.5KPa, the O2 content of air pheheater is controlled about 3.0%, the door of OFA is opened to 30%, the buffle of the inner secondary air sleeve is adjusted to the minimum, the outer secondary air swirling strength and the baffle of the outer secondary air sleeve is regulated to the maximum and the outlet temperature of pulvervised mill is kept in 70℃.

试验结果表明，330MW运行时，一次热风母管压力控制在12.0～12.5kPa以上、空气预热器实际氧量控制在3.0％左右、燃尽风门开至30％、内二次风量套筒挡板调整在最小、外二次旋流强度和外二次风套筒挡板调整到最大、磨煤机出口温度维持在70℃，此时锅炉结焦大幅度减轻，水平烟道两侧烟温差非常小。优化试验完成后，进行了单烧灵武烟煤对比，结果是：掺烧高灰熔点的银北煤后，炉膛结焦大幅度减轻，锅炉过热器减温水量较小，主蒸汽压力易提高，带负荷能力正常；再热器烟气挡板开度较大、减温水量较小；风机电耗较小。

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苏州恒大涂装设备有限公司是专业代理经销日本岩田IWATA自动空气喷枪及手动空气喷枪； DEVILBISS中压自动空气喷枪及手动空气喷枪、日本明治MEIJI喷枪、涂料调压阀；台湾宝丽、齐成、悍虎、涂料压力桶；三丰、五分、国宝气动双隔膜泵浦；GRACO气动双隔膜泵浦、搅拌器；瑞士GEMA粉体静电喷枪；日本ASAHI液体手动/自动静电喷枪/泵浦、气动双隔膜泵浦、涂料稳压阀及静电旋杯喷枪和各种零配件；日本SSD、台湾冠品静电除尘枪、静电测试仪；GRACO高压无气喷涂机；台湾元麒ΩDISC静电旋碟喷涂机；耐高温链条油、耐溶剂涂料管、空气油水分离器、台湾石大吸附式/冷冻式干燥机、气动工具、喷涂、清洗、冷却、润滑用喷嘴。

The dynamics and heat transfer on the spinning line during the air drawing process are discussed in detail, mainly relating the forces acting upon the polymer along the spinning line and the expressions of the air drawing coefficient C〓 and heat transfer coefficient h. By introducing the power-law model as the constitutive equation to describe the theological properties of polymer melt and considering the changing of the density and specific heat capacity of polymer melt at constant pressure with the polymer temperature, the former model of polymer air drawing is improved and a complete polymer air drawing model is established, which is integrated with the model of air jet flow field of dual slot die.

在此基础上，对前人的聚合物拉伸理论模型进行了改进，以幂律模型作为描述聚合物熔体流变行为的本构方程，并考虑了聚合物熔体密度和定压比热随聚合物熔体温度变化而变化这个因素，从而建立了完整的熔喷聚合物拉伸理论模型。

In particular, twin-screw-type air compressor is widely used in mechanical, metallurgical, power electronics, pharmaceuticals, packaging, chemicals, food, mining, textiles, transport, and other industrial fields, compressed air into the mainstream products air compressor, is to A standard atmospheric pressure of air through the transformation of the mode of energy output to meet the needs of users of air equipment, energy conversion generally be interpreted as mechanical energy to kinetic energy.

尤其是双螺杆式的空气压缩机被广泛应用机械，冶金，电子电力，医药，包装，化工，食品，采矿，纺织，交通等众多工业领域，成为压缩空气的主流产品空压机，就是把一个标准大气压的空气通过能量转化的方式输出来满足用户需求的空气的设备，能量转化一般都是可理解为机械能转为动能。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。