3.寿光改良式日光温室 寿光改良式日光温室是在瓦房店琴弦式日光温室的基础上,吸取原寿光春用型大棚某些优点改造而成。其改进的方面主要有以下几点: (1)改变了前屋面形状,由斜面变成了微弓面。前屋面改为微弓面后,一方面增大了采光角度,增加了采光量,加快了大棚升温的速度;其次是前屋面改成拱形 3. Shouguang modified solar greenhouse Shouguang modified solar greenhouse is the Wafangdian string greenhouse, based on the absorption of the original Shouguang spring greenhouse with some of the advantages of transformation made. The main aspects of its improvement are the following: (1) changed the shape of the front roof, turned into a micro-bow from the slope. After the former roof is changed into the micro-bow surface, on the one hand, the lighting angle is increased, the amount of light is increased, and the speed of warming in the greenhouse is accelerated; the front roof is arch-shaped