空气的

Some parameters such as Indoor radiation heat transfer, convective heat transfer, MRT, OT, radiation heat transfer coefficient, convective heat transfer coefficient, and PMV-PPD were calculated under a steady condition. From the result, we can conclude, when operation under the combination system and worst-case test, if floor temperature is about 21℃, supply air temperature is 21℃, air velocity is 1m/s, the equlvalent coefficient of heat transfer between floor temperature and OT is 13.6w/m2k, where 5.68w/m2k is equlvalent coefficient of radiant heat transfer, 9.48w/m2k is convective heat transfer coefficient. And when air velocity is higher, supply air temperature is lower, the radiant heat transfer between floor and others is lower. In the whole experiment, the floor temperature was keeping above the indoor air dew point, and condensation was not appeared.

通过分析计算，在复合式系统运行中，最不利室外环境下，当地面温度维持在21℃左右，送风温度21℃，送风风速1m/s，此时地板对作用温度的当量综合换热系数为13.6w/m2k，其中当量辐射换热系数为5.68w/m2k，对流换热系数为9.48w/m2k，并且送风速度越高、送风温度越低，地板与其他壁面的辐射换热量有一定程度的降低，但总供冷量增加；在整个实验中地板温度始终高于地板上层空气的露点温度，并未发现有结露现象；室内空气温度梯度能满足0.1m-1.1m的温差小于3℃的要求，并且适当提高送风温度可以进一步提高人体的热舒适性。

Haire fifth generation central air condition has the idiosyncracy of complete air quality. It means that in the condition that the window is closed, the room can get new wind completely. So consumers enjoy not only cool wind but also healthy and natural air.

海尔推出的第五代家庭中央空调独具备的"全空气品质"的特质，在不开窗的情况下实现了全面换新风，让消费者在享受中央空调带来的凉爽之外，更保证室内空气的健康与自然。

In experimental respect, a set of fundamental framework to investigate the performance of the saturator has been designed, including the transparent saturator cylinder, the pressured air system, the distilled pressured water spray system, the precise measurement system of transient temperature and humidity variation. All the measurements are recorded using a computer-aided Data. Acquisition System .

利用该实验台，本文对该饱和器性能进行系统的实验，通过对大量的实验数据进行分析比较，得出饱和器内喷嘴的布置方案、水与空气的流动方式、水汽比、水温等因素对饱和器出口湿空气的温度及湿度的影响规律，通过实验结果与理论计算结果相比较，对饱和器的理论模型进行了验证。

Firstly, the condensation heat transfer of steam-air mixture on the outside of a horizontal smooth tube and four square thread tubes is studied experimentally, and then, the condensation heat transfer on axisymmetrical surfaces as well as vertical plates of any kind of vapors containing noncondensable gases is analyzed theoretically.

本文作者先实验研究含空气的水蒸汽管外冷凝时水平光滑圆管和强化换热圆管的传热特性，实验时控制主流混合气体的压力和空气的质量成分，并探讨建立实验关联式的方法；然后对含不凝气体的蒸气在竖直平板和轴对称壁面上冷凝换热进行理论分析。

Sings the sound wave which the sympathetic chord is refers sings when sound production the breath impact vocal cord vibrates produces, through the vocal cord around muscle, the cartilage and the air transmission, causes the phenomenon which the mouth, cavity body and so on in the chest air produces resonates.

歌唱的共鸣是指歌唱发声时气息冲击声带震动产生的音波，通过声带周围的肌肉、软骨和空气的传递，使口、头、胸等腔体里的空气产生共振的现象。

Based on the introduction of severals kinds of vegetation s which can purify atmoshpere efficiently,indoor vegetation plantation is rewmmended.

文章叙述了在城市绿化中选择净化空气的植物配植的方法、原则，介绍了几种对大气污染吸收净化能力强的植物种类，和室内选择净化空气的花草。

The aerospace indu***y is the complex of manufacturing concerns engaged in the production of flight vehicles, including unpowered gliders and sailplanes , lighter than air-craft, ground-effect machines, heavier than air craft of both fixed-wing and rotary-wing varieties, military missiles, space launch vehicles, and manned or unmanned spacecraft; propulsion systems and other thrusting devices; on board equipment essential to the design purpose of the flight vehicle; and ground-based support equipment needed for the operation and maintenance of the flight vehicle.

航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。

In this experiment some factors such as the metal ion content, the power of microwave radiation, and the time of microwave radiation, the pressure and the volume ratio of solvent phase-to-oil phase were investigated.

随着汽车工业的发展和柴油机车应用的日益广泛，柴油机车尾气排放的NOx对空气的污染，已造成一些大城市空气污染由煤烟型过渡到机动车型[1]。

Model SRZ and SRL screw wing radiator manufactured by our factory is mainly used for heating air in the system of dry and is main drying equipment in hot air device. The conducted heat medium adapted in radiator may be steam or hot water or heat conducting oil.

我厂生产的SRZ和SRL型螺旋翅片式散热器，主要用于干燥系统中空气加热，是热风装置中的主要设备，散热器采用的热介质可以是蒸汽或热水，也可用导热油，蒸气的工作压力一般不超过0.8Mpa，热空气的温度在150℃以下。

TOTAL AIR TEMPERATURE, Ambient or static air temperature plus the rise of temperature due to the ram effect of high speed flight.

空气全温，环境温度或静空气的温度，和由于高速飞行的冲击效应而引起的温度的升高的总和。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。