美 [friː beɪs]
游离碱；自由基地
freebase /ˈfriːˌbeɪs/
名词 cocaine that has been refined by heating it in ether or some other solvent (在乙醚或其它溶剂中加热过的)精炼可卡因
动词 to refine (cocaine) in this way 用乙醚等加热精炼(可卡因)
Of the three types of nicotine, researchers found that all the brands of e-liquid they tested were the strongest form - free-base nicotine that is easily absorbed by the body.
研究人员发现，他们测试的所有品牌电子烟含有的尼古丁都是游离态的，这是尼古丁三种类型中药性最强的，且很容易被身体吸收。
The essay discusses the application of acrylonitrile co-polymerization in acrylic fiber production through the analysis over the reaction of dynamics of free-base co-polymerization.
前言： 本文通过对自由基共聚反应动力学的分析，对丙烯腈共聚合反应在腈纶生产中的应用进行了讨论；
The environment-friendly thixotropic antirust oil is composed of base oil and barium-free antirusting agent.
这种环保触变性防锈油，由基础油和无钡防锈剂组成。
Muni bonds are distinct from all other bonds in that their tax-free feature means that the investor base that is 70% individual vs institutional.
But each time some future Congress tries to raise the rate for contract protection, payers would have a natural inclination to band together and lobby to expand the base to cover more free-riders as an alternative.
Larry Moscow presented the details of the just-completed national poll, which underscores the broad base of support among Americans to use terror-free investing to help fight terrorism.
CENTERFORSECURITYPOLICY: Terror-free investment gathers steam