采用高速逆流色谱法（HSCCC），以正己烷氯仿甲醇水组成二相系统作为固定相与流动相，对黄芪的乙酸乙酯粗提物进行了分离纯化。
Preparative high-speed counter-current chromatography (HSCCC) was used for the separation of calycosin and formononetin from the ethyl acetate extract of Astragalus membranaceus Bge.
礼仪阻止气体生成，因此，再没有新的甲醇氯仿物能够打乱这项研究的数据了。
The gas was banned by the Montreal Protocol, so now, no new methyl chloroform is fouling the data.
既然再不会生成这种气体，那么，科学家们就能够更精确地测量在甲醇氯仿物的空气聚合反应中生成的氢化物水平。
Now that the gas is no longer being produced, scientists can more accurately gauge the action of hydroxyl upon methyl chloroform's atmospheric concentration.
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