Investigation of effects of outer shading screens on illumination inside multi - span greenhouse 2萃取生姜中抗氧化活性物质的工艺研究
Experimental research on cooling effect of natural ventilation in a venlo - type multi - span greenhouse 型连栋温室夏季自然通风降温系统的试验研究
Simulation and optimization of natural ventilation for mutual interval insert type multi - span greenhouse 间隔互插式连栋温室的自然通风模拟与优化
Therefore , it has common significance and adaptability for study on the design theory of multi - span greenhouse structure which takes series east - china multi - span plastic greenhouses for research object 因此以系列化华东地区连栋塑料温室为研究对象,研究连栋塑料温室结构设计理论具有普遍意义和适应性。
Aimed at the situations of theory research which is not enough systemic for multi - span plastic greenhouses structural design in our country , based on the contrast analysis of standards provided in foreign and chinese standards , through digestion and absorption , then innovation , a suit of multi - span greenhouses structural design method and theory will be summarized in accordance with the specific conditions of our country , which helps to the establishment of greenhouses structural safety design standards in the tenth five - year plan periods 针对我国连栋塑料温室在结构设计理论方面研究不够系统的状况,拟通过对比分析国内外相关标准规范,经过消化、吸收,再集成创新,总结出一套适合我国气候特点和经济发展水平的连栋塑料温室结构设计方法和理论,为“十五”期间温室结构安全设计标准的制定提供理论基础和实践依据。