The diisoamyl glutarate in catalysis of silicotungsticacid was preparated by esterification of isoamyl alcohol and glutaric anhydride seperated from dicarboxylic acid.
The perservative in liquid beverage was extrcated with n-hexane.The hexane layer was subjected to cyclodextrine polymer resin colume.The colume was eluted with aqueous solution of ethanol.
Palladium can be separated from polyxene by the process of resolving polyxene,removing nitrate,precipitating palladium,etc.The grade of pure platinum obtained from the process is more than 99.95%.
Most commonly, blood stem cells are filtered out of the donor's bloodstream by circulating the blood through a machine that separates it into different components.
An onboard desalination system would remove the salt from the water, and then a giant freezing machine would form icebergs, 5 meters thick and 25 meters wide.
The economy can be " de-coupled" from material inputs, they claim, and improved technology will allow us to produce more wealth with less energy, materials, and waste.
Now, this is a separable phrasal verb, which means it can 'filter something out' or you can 'filter out something', and it basically means to remove something completely or to purify.
现在,这是一个可分离动词短语,意思是指“过滤掉一些东西”它可以用“filter something out”,也可以可以用“filter out something”,它基本意思是完全去除某物或净化某物。
Over on the right, Stuart is making some clarified butter for our frog legs-- a process through which you melt unsalted butter over low heat to separate the milk proteins that start to gather on top.