They have authorised faster trains and new hospitals, mandated ever tougher sentencing laws and governed DNA sampling and stem-cell research.

它们已批准建造更快的火车或新的医院，授权更加严厉的判例法以及管理DNA样本和造血干细胞研究。

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"It's kind of obvious in retrospect," Xu said, "but sticky spider webs may be a 'natural' DNA sampling device for DNA from the spider, and from what it's been eating."

徐说，“现在回想起来好像也很显而易见，粘粘的蜘蛛网是收集蜘蛛及其食物dna的“自然”采样设备。”

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He also praised the sampling of different kinds of DNA and the analytic methods.

他还称赞了对不同种类DNA进行采样的做法以及分析方法。

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And it was developing a mobile DNA sampling kit to match body parts with animals.

BBC: Google cash buys drones to watch endangered species

For now, looks like the courts are on the side of DNA sampling being part of a reasonable search and seizure.

FORBES: Criminal DNA databases get a constitutional stamp of approval

While Justice Kennedy agreed that DNA sampling constituted a search of an arrestee's body, he said he considered it a minor intrusion.

WSJ: Supreme Court: Police Can Take DNA Samples in Arrests