betulaefolia
美
英 
例句
The volatile oil from the fruits of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by GC-MS method.
采用水蒸气蒸馏法从杜梨果实中提取挥发油,用气相色谱-质谱对化学成分进行鉴定。
Preliminary study of the fruiting features and maturing condition of Pyrus betulaefolia
棠梨果实特性和成熟情况初步研究
Study on the Extraction Methods and Content Measurement of Polysaccharide from Pyrus betulaefolia Bunge Fruit
杜梨果实多糖提取方法及含量测定的研究
Chemical Components in Volatile Oils from the Flowers of Pyrus betulaefolia Bunge
杜梨花挥发油化学成分的研究