Determination of freezing tolerance and its correlated characters in non-heading Chinese cabbage study on the freezing tolerance of red Tsai Tai 不结球白菜抗冻性鉴定及其相关性状的研究红菜薹的抗冻性
Study on the regularity dissolving of the trace metals in the polygonatum sibiricum red of Mount Tai 泰山黄精中微量金属元素溶出规律研究