挡雨板 meaning in Chinese

weatherboard

Shutter is one kind of inlets used widely in natural ventilation , therefore , the study for shutters may be a breakthrough for using natural ventilation more effectively . firstly , this paper will study the performance of shutters in single side by cfd . secondly , we will work at hoods with shutters in four sides
百叶风口是自然通风中使用最广泛的风口，因而对于百叶风口的研究则有可能成为更为有效合理利用自然通风的突破点，本文将利用数值模拟首先对单侧百叶风口的性能进行研究，在此基础上，本文对实际中应用比较广泛的四面百叶型风帽进行了研究，并对单侧百叶风口的挡雨板的合理设计方法做初步探讨。
For shelters , the results show : 1 ) to reduce the raining drops entering into the inlet and to decrease the influence of the vortex , the declining angle of 45 is recommended for the shelters ; 2 ) it is better to choose those shelters which are longer 100 mm ~ 200 mm than the height of the inlets , as they may protect the room from rain
对于单侧百叶风口的挡雨板，计算表明: 1 )为了防止雨水随空气流入自然进风口，并且使风口尽量少受涡流区的影响，建议选用倾斜角度为45 “的挡雨板; 2 )建议选用长度比风口高度长100mm - - 200 “的挡雨板，可以较好的避免挡雨板过短将雨水带入室内和过长影响风口进风的情况。