Air brush: Small air pressure gun, shaped like a fountain pen, that sprays paint by means of compressed air.

Then Ibrahim looked once more in the surface of the diamond and saw a great web like that of a spider hanging in the air round the castle.

易卜拉欣又看了一次钻石面，这回看见一张蜘蛛网似的大网悬在空中，罩着城堡。

Because of the disjoint of the theoretical and practical research of reading instruction, many theories can not be put into practice for proof-test finally. So the theory becomes an air castle without any practical applicable worth;

关于阅读教学对话的理论研究与实践研究脱节，很多理论最终难以付诸实践和接受实践的检验，理论建构成为空中楼阁，缺乏实际应用价值；

Short of perfect Regional Innovation System, National Innovation System will be nothing else but air castle.

没有健全的区域创新体系，国家创新体系无异于空中楼阁。

Study on Method for Determination of Air Change Flow in Air-conditioned Carriage

空调旅客列车新风量测定方法的研究

Application of air change ventilation system in hydropower house

置换通风系统在水电站厂房中的应用

Analyzes the effects of indoor dust loading and of fresh air rate to the air change rate in turbulent flow clean rooms.

分析了乱流洁净室净化空调设计中室内发尘量和新风比对换气次数的影响。

A reason for this is that RH buffering by materials is feeble and short lived compared with temperature buffering when the air change rate is large.

原因是当空气交换量大时，和热缓冲材料相比湿度缓冲材料的功能较弱，而且寿命不长。

Finally, the determination method of minimum thermal resistance to prevent mould growth is proposed according to internal moisture production rate, air change rate, indoor and outdoor temperature.

最后根据室内产湿率、换气效率及室内外温度条件得出了基于预防霉菌生长的墙体的最小热阻的确定方法。

Introducing equivalent person-density, explores the ultimate equivalent person-density at the largest air change rate the criterion regulated.

引入当量人员密度，提出了规范中换气次数上限适用的当量人员密度限值。

Under same air change rate, the particle deposition in horizontal air supply is 65% less than that in vertical supply model.

医护人员周围的粒子浓度高于相近换气次数下的垂直流送风方式。手术关键区上的沉降粒子数明显低于垂直送风方式，相近的换气次数下，粒子减少率约为65%。

Air change rate was calculated by using CO2 two-parameter build-up method and one-parameter decay technique.

房间的换气次数根据两参数CO2浓度上升法和单参数浓度下降法进行计算。

Especially discusses the ways of choosing a proper air change rate.

讨论了换气次数的正确选取方法。

When increasing the air change rate in the underground space, the radon concentration in the air will fall fast.

在较高的氡浓度状态下，室内氡浓度对通风十分敏感，增大地下空间的通风换气率，会使空气氡浓度大幅度的降低。

This paper proposes the design plan of automatic loading chest machine and introduces in detail the design of control system about the circuit, air channel and software, etc.

提出了全自动装箱机的设计方案，并从电路，气路和软件等方面具体介绍了控制系统的设计。

Presently, there are differently extent vibration at the cold air channel system and flue of some boilers these worked many years.

目前，某些运行多年的锅炉，其送风机出口冷风道存在不同程度的振动。

Experimental study of gas-particle two-phase flow in the primary air channel of direct-flow pulverized coal burner

直流燃烧器一次风通道气固两相流实验研究

Boiler is one of key equipments in power plant; the cold air channel system will directly affect the work of boiler.

锅炉是发电厂的关键设备之一，冷风道系统的安全平稳运行直接影响到锅炉的运行。

This paper elucidates the factors and mechanism which result in vibration of the cold air channel system in detail.

本文详细地阐明了引起锅炉冷风道系统振动的各种因素及振动机理。

Blocking Fault Treatment of Expansion Air Channel of a Plate Hot Exchanger in an Air Separation Device

空分设备板式换热器膨胀空气通道堵塞事故处理

Development or uniform air channel in air-conditioned passenger cars

空调客车均匀送风风道的研制