Earlier, the FTSE 100 index of British blue-chip shares slumped by as many as 222 points to 5, 518, testing a new two-year low and more than wiping out yesterday's gains.

早些时候，英国主要股票指数——金融时报100指数最低跌至5518点，下跌222点，超过昨天的跌幅，创近两年来新低。

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By testing the performance parameters of experimental prototype, its performance index can meet the technical and performance requirement.

通过对试验样机的性能参数测试获得，该样机的性能指标达到了技术性能要求。

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Instrument testing, usually by polarizing instrument to test the structure of its crystals, through the refractometer to test its refractive index.

仪器测试，通常是通过偏光仪来测试它的结构晶体，通过折射仪来测试它的折射率。

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Vincent Palermo, an index expert at Merrill Lynch, is testing indices that would weigh the size of countries' economies, as well as their outstanding bonds.

ECONOMIST: Emerging markets