Methods The essential oil was extracted by steam distillation from sunning-fixed sample and sulfur-smoke-dried sample, and their components were analyzed by GC-MS.
方法采用水蒸气蒸馏法分别提取八角茴香杀青晒干品及其硫熏干燥品的挥发油,用GC鄄MS 法鉴定挥发油成分。
Three small overflow dams with different grade in an urban river were constructed and the water quality in different fixed sample points were periodically monitored.
对人工搭建的三个不同坡度的小型溢流堰堰体上下的水质进行定期监测,考察溢流堰坡度对水体溶解氧和有机污染物浓度的影响。
To fully exploit, utilize and protect the climate resources in Zhangjiajie, we studied the features of climate and microclimate of the long and short-term fixed sample sited in Zhangjiajie.
为了充分开发利用和保护张家界的气候资源,我们采用长期定点和短期定位相结合的方法,观测研究了张家界的气候和森林小气候特征。
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