The performance of sand core was improved by using the modified water glass as a binder and adding powder additives in t......

摘要 [目的]筛选蔬菜优良耐高温高湿资源，培育耐高温高湿品种。[方法]选取3个品系（生菜、菠菜、青菜）15份不同蔬菜材料，在不同温度和湿......