防寒沟 meaning in Chinese

ditch for against freezing

Abstract : by means of the basic climatic principle and the local astronomical parameters the optimal dip angle , maximum wind pressure borne by the roof material , the depth of the cold - proof ditch and the suitable distance between the greenhouses in chengdu area are calculated
文摘:应用气侯学基本原理,当地天文参数与气候资料,计算了成都地区节能日光温室采光面最佳倾斜角,顶面覆盖材料承受最大风压,防寒沟深度及温室间适宜距离。