At last, the validity of the presented model has been tested through a case mathematical calculation.

最后，通过实例演算，证明所提模型的有效性。

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The effect on the rice growth in heading and flowering period by SO2 emitted from natural gas purification plant and fell to the ground has been tested through fumigation experiment.

通过对处于抽穗扬花期的水稻进行人工熏气试验，考察天然气净化厂事故徘放时外排的二氧化硫落地后对水稻生长的影响。

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In those countries where the blood has been tested, HIV infection through blood transfusions is now extremely rare.

这些国家里，HIV病毒通过输血感染的现象极为罕见。

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The development of this approach to combining regulatory functions has been tested through discussions with the UK regulators, independent regulatory experts, consumer groups and business organisations across Scotland.

BBC: Scotland politics

Again and again, America has been tested in the 20th century, coming through it all down to the present day with even greater blessings of liberty and prosperity, with our enduring optimism and steady faith in our common humanity.

CNN: Transcript: Clinton speaks at Memorial Day Event