“挥发油”造句

单萜类化合物是植物挥发油的主要成份.
The monoterpenoids are dominant components in the " volatile oils " of plant species.

目的: 研究腺点金丝桃挥发油成分及相对含量.
AIM : To study the constituents of Hypericum Scabraum. its percentage composition.

方法: 采用水蒸气蒸馏法从枳壳中提取挥发油.
Methods: The volatile oil was extracted from Fructus Aurantii by steam distillation.