原因：当室外湿度大的时候，室内机制热，室外机冷凝器表面会结霜，这样会影制热效率。
Reason: when the humidity outdoor, indoor, outdoor heating surface of the condenser will, this will be the frost of heating efficiency.
这些系统，在妥善设计和安装，可提供室外的温度冷却到40摄氏度，几乎没有相对湿度明显增加。
These systems, when properly designed and installed, can provide cooling of outdoor temperatures by up to 40 degrees Fahrenheit with virtually no noticeable increase in the relative humidity.
将室外的温度、湿度、风力和和风向等数据输入电脑。
Data on outdoor temperature, humidity, as well as wind speed and direction were transmitted to the computer.
室内相对湿度变化总会比室外相对湿度变化小，有的变化小的很多。
The indoor relative humidity is now moderated so that it is always less than the variation outside, and often much less.
对一台空气源热泵空调器在不同环境条件下室外换热器的动态结霜性能进行了实验研究，分析了进风温、湿度对热泵空调器结霜量及霜层厚度的影响。
The effects of the outdoor air temperature and humidity on the frosting characteristics of the fin-tube evaporator coils of an air source heat pump were investigated experimentally.
在需要承担较大荷载或湿度较大的地方，例如砌筑地下外墙或地下室外墙，就需采用质地密实且强度较高的混凝土砌块。
Where heavy loads are to be carried or dampness exists, AS with cellar or bASement walls, a dense and stronger concrete is necessary.
相对室外而言，室内温湿度变化幅度更小，并且与天井的开口大小显示出明显的正相关性。
The variational rage of indoor temperature and humidity is smaller than outdoor, and it also has positive relativity with the size of dooryard peristome.
对一台空气源热泵翅片管蒸发器表面结霜特性进行了实验研究，分析了室外环境温度和相对湿度对霜层形态和密度的影响。
The effects of the outdoor air temperature and humidity on the frost morphology and density of the frost layer were analyzed.
某些情况下，来料接收区域可以设在室外的帐篷下，但是这样就需要考虑例如太阳辐射和湿度等因素。
In some cases, it may be acceptable for the incoming goods area to be located under a canopy in the open, although factors such as solar radiation and humidity must be taken into account.
某些情况下，来料接收区域可以设在室外的帐篷下，但是这样就需要考虑例如太阳辐射和湿度等因素。
In some cases, it may be acceptable for the incoming goods area to be located under a canopy in the open, although factors such as solar radiation and humidity must be taken into account.
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