The prototype trial showed that every working index reached design requirements and excellent performance was achieved.

经过样车试验，各项指标都达到了设计要求，性能优越。

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The index indicated firms were working through backlogs of work to sustain output growth.

BBC: Scottish economic growth 'slows further'

For our part, we're working with rights holders worldwide to index a vast catalogue of programming for online use so hopefully your choices will multiply shortly.

BBC: Digital broadcasting: Industry answers

Here's how it works: Researchers give people working in pairs three sets of 12 questions written on index cards.

WSJ: Advice for Making New Friends: Share But Don't Overshare