A solvent was used as gold extractant and a sort of compound back extract reducer was used for reduction at one step in normal temperature.

用某溶剂作为金萃取剂，用某复合反萃还原剂在常温条件下进行一步还原；将箱式混合澄清槽经改进后作为萃取器。

youdao

That will extract the maximum amount of information back out of the database again.

这将再一次从数据库中提取最大可能的信息。

youdao

The secret to avoiding gas-guzzling at sea is to go back to the roots of the word "sailing" and extract power from the wind.

在海上避免耗油的秘密在于回到“航行”一词的根源上来，并用风力发电。

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They had been looking for oil and lacked the technology back then to extract gas from waters more than 3000 feet deep, or pipe it ashore for conversion to LNG.

FORBES: ExxonMobil Joins LNG Rush With Barge 6X Bigger Than An Aircraft Carrier

Terahertz light - which lies between infrared light like that used by remote controls and the microwaves in the appliance of the same name - has become popular in scanning technology at airports and museums' back rooms because it can extract information without risk of damage.

BBC: Terahertz scanner reveals hidden fresco at Louvre

The news is reminiscent of the discovery made in Switzerland a couple of years back that pumping water deep into hot rocks to extract geothermal energy can also cause earthquakes.

FORBES: British "Fracking" Causes Earthquake -- What Now?