These films can be used to make a new type of loudspeaker that works by heating and cooling the air, rather than bouncing up and down to vibrate the air directly.
这样制成的薄膜可以被用来制造一种新型扩音器，这种扩音器通过加热和冷却空气工作，而不再是直接通过往复运动使空气产生振动效果。
It works by drawing air through filters to remove dust and particles, then cooling it to just below the temperature at which dew forms.
该产品的原理是：通过过滤器抽取空气，除掉其中的灰尘和小颗粒，接着将空气冷却至水的凝点。
The main part of the cooling system is a 3-wheel air-cycle machine which works as a self-controlled system for heating and cooling.
冷却系统的主要部件是一部3轮空气循环机，是可以进行加热和制冷工作的自维持系统。
When the cryogenic refrigerator works on this optimum cone Angle, the performance can be improved that means the decreasing of the lowest cooling temperature and the increasing of the cooling power.
在最佳锥度下，采用锥形脉管制冷机对改善制冷机的性能，进一步降低制冷温度、提高相同制冷温度下的制冷量是有利的。
This paper introduces the application of the single chip microcontroller that works as the fuzzy controller on the intelligent controlled cooling system of the Auto engine.
介绍了以单片机为模糊控制器的汽车发动机冷却系统的智能控制系统。
Scaling, cleaning and water quality stability disposal technology of the circulation cooling water system of the oxygen making works are presented.
介绍了制氧站循环冷却水系统除垢清洗及水质稳定技术处理。
The contact oxidization technology using biological ceramic in the water works is sketched in this article and the treated sewage can be used as the industrial cooling water.
简述了太化集团有限公司水厂采用生物陶粒接触氧化技术，将污水进行深度处理回用于工业冷却水的工艺流程。
Fan is the main cooling part of inverter, which works in bad condition, and has a high fault rate.
风机是矿用隔爆变频器的主要散热部件，工作环境恶劣、故障率很高。
This works without any delay or inertia and correspondingly also for cooling.
这套系统不受热惯性的影响。同样，制冷也是如此。
The system is connected with the cooling wheel speed control system and works reliably.
系统与冷却鼓连接，实际运行可靠。
Fans at the royal court varied widely. Exquisitely made, they were more than a tool for cooling people down; they were extraordinary works of art.
清代宫廷中的扇子，多种多样，用料上乘讲究，除了带给人们清风徐来的实际功用，俨然已是艺术品。
Fans at the royal court varied widely. Exquisitely made, they were more than a tool for cooling people down; they were extraordinary works of art.
清代宫廷中的扇子，多种多样，用料上乘讲究，除了带给人们清风徐来的实际功用，俨然已是艺术品。
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