风扇

Thermal comfort and indoor air quality requirements are presented; the contents cover the following topics:(1) Concept of air-conditioning,(2) Thermal principle,(3) Psychrometry and wetted-surface heat transfer,(4) Heating and cooling-load calculations,(5) Air-conditioning systems,(6) Fan and duct system,(7) Pumps and piping,(8) Cooling and dehumidifying coils,(9) Air-conditioning controls,(10) Absorption refrigeration,(11) Heat pump,(12) Cooling towers and evaporative condensers.

课程大纲本课程将介绍空调工程与系统设计，藉由湿空气线图讨论空气调节之过程，分析人体舒适与空气品质之需求，及各种空调设备系统之设计，内容涵盖如下：(1)空调的概念(2)热原理(3)湿空气与湿表面热传(4)加热与冷却负荷估算(5)空调系统(6)风扇与风管系统(7)泵与管路配置(8)冷却与除湿盘管(9)空调自动控制(10)吸收式冷冻系统(11)热泵(12)冷却水塔与蒸发式冷却。

On the other hand, if the primary air fan is upstream of the pulverizer, then it exerts a positive pressure on the pulverizer.

在另一方面，如果主风扇在磨机上流物流中，磨机中存在正压。

If this fan is downstream from the pulverizer, it exerts a negative pressure, or suction, on the pulverizer.

主要的缺点是，在磨机停机的情况下，无法充气将原煤从磨机中清理出来，因为此时间主风扇也停机了。

In this respect, the air provided by the system fan enters the pulverizer, but only that air passing through the primary fan enters the kiln.

这就意味着在密闭循环中存在煤粉聚集的可能性，包括系统风扇在内。

This involves comparing fan-motor and pump horsepower, as well as maintenance and life-cycle costs.

这涉及到比较风扇电机和水泵的马力，以及维护和寿命周期成本。

I think he probably intended to say "short, punching sentences," meaning sentences that lashed out at you, bloodying your brain if possible, and looking up the word just now I came across the nearby "punkah," which is a large fan suspended from the ceiling in India, operated by an attendant pulling a rope-that is what I want for my sentence, to keep it cool!

我想他也许要说"断而另人晕眩的句子"，就是句子抽打着你，如果可能的话打得你脑袋开花，抬头看我穿过"蒲葵扇"旁边的单词，是一个来自印度的挂在天花板上的巨大的风扇，通过服务员拉绳子来操作——也就是我想从我句子中得到的，来使它冷下来！

It analyzes some major symbols such as the Marabar caves and the echo, the title and the structure, and also discusses some minor and detailed symbols like the punkah wallah, Professor Godbole and his religious songs, as well as the all-controlling sky.

在这一章里，通过分析马拉巴山洞及回声的象征、分析蕴涵丰富象征意义的标题和结构、分析一些细小象征如拉风扇的仆人、戈德博尔教授及其所唱的宗教歌曲、印度的天空等，表现了福斯特独特高超的象征艺术手法。

Also called "racecourse" or "closed-return", which are usually powered by axial fan.

也叫"跑马场"或"关闭的回环"，它们由轴向风扇提供动力。

Radial engine in normal attitude with forward drive via cooling fan and centrifugal clutch to bevel box and rotor shafts, with hydraulic coupling and additional oil-depressed spring which on failure of drive forced blades into autorotative pitch.

在正常的态度与前径向发动机驱动冷却风扇和离心通过离合器锥盒，转子轴，与液力偶合器和额外的石油沮丧春天对驱动器发生故障被迫autorotative间距刀片。

During high load, in active clamp circuit, output diode will be converted into MOSFET、a current transformer and PWM fan controller are used to reduce total power consumptions. To achieve EPA regulation.

在输出负载为重载(100%)时，将主动箝位线的将输出端的整二极体改为功晶体、使用电变压器和脉波调变输出的风扇控制方式减少总功的耗，以达到加州能源法节能的规范。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。