目的: 从佩兰中提取挥发油,并测定其含量.Objective : To extract and determine naphtha in Eupatorium fortune.方法: 采取超临界CO2萃取 、 微波萃取和水蒸汽蒸馏三种方法提取佩兰挥发油.Method: The volatile oils were obtained with supercritical CO 2, microwave and stream distill...
A one-mile area around the wreck is still off limits...沉船方圆一英里内仍然禁止进入。Stanley Park, English Bay, Gastown , Granville Island, and Wreck Beach.像史坦利公园 、 格兰湾 、 士镇 、 兰佛岛和沉船滩.I was a physical and emotional wreck — I still can&...
新一代科学家对恐龙研究着了迷。A new generation of scientists became fascinated by dinosaurs.科学家们知道癌症可能会潜伏多年。Scientists know that cancer may not show up for many years.普利茅斯海洋研究所的科学家一半有学士学位，另一半则有博士学位。Half of PML's scientists have fi...
The ambrosial and essential part of the fruit is lost with the bloom which is rubbed off in the market cart , and they become mere provender.水果的美味和它那本质的部分，在装上了车子运往市场去的时候，跟它的鲜丽一起给磨损了，它变成了仅仅是食品。It is a proud horse that wil...
Other areas are to lose aid so that money can be reallocated to towns devastated by pit closures.将不再资助其他地区，以便资金可以重新分配给饱受矿井关闭影响的城镇。The economy of the inland towns and cities of our country also develops rapidly in recent ...
...a slum area of St Louis.圣路易斯的贫民区What a wretched existence the people in the slum lead!这个贫民窟里的人们过着多么令人悲惨的生活啊!Foggartism having met with high disfavor and unpopularity, Michael became interested in slum improvement.由于福加...