The practice proved that the expert system has the feasibility.

实践证明，该专家系统具有可行性。

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The practice proved that the method is feasible and very effective.

实践证明这些方法可行且十分有效。

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The practice proved that the ameliorated equipment could work normally.

实践证明，改进后的设备工作正常。

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Data from the portal have proved what many had suspected: that the decades-old practice of releasing music to radio weeks before putting it on sale feeds piracy and saps sales.

ECONOMIST: Music and technology: Digitally remastered | The

It was financed by assessments on adjoining property owners for the "improvements" of paved streets and utilities, a practice that met with violent resistance but proved profitable in the end.

WSJ: The Greatest Grid | Museum of the City of New York | Crosshatching a Miracle | By Ada Louise Huxtable

But it wasn't until 1747, when an English physicist named Benjamin Robins proved that "rifled" barrels performed better, that the practice really took off.

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