Moving forward, Tenaris expects the trend to continue with oil country tubular goods (OCTG) demand boosted by higher activity in the Middle East a sustained level of activity in North America.

展望未来，泰纳·瑞斯预期油国管材(OCTG)的需求推动活动在中东的活动在北美的持续水平较高的趋势将继续下去。

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Clevudine is a pyrimidine analogue with potent and sustained antiviral activity against HBV.

克来夫定为嘧啶类似物，对HBV具有持续有效的抗病毒活性。

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Moreover, it also helps one to understand where lasting change is likely to originate: not from the occasional activity of a cross-spectrum grouping, but from the sustained, persistent, targeted, and strategic activity of one.

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But he says published data in the August 1998 journal of the Association of periOperative Registered Nurses on a sanitizer with the same active ingredient shows sustained activity.

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Manufacturing activity in China picked up speed in March, an initial HSBC survey has indicated, adding to hopes of a sustained recovery in its economy.

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