The applications of nuclear techniques make archaeology gradually become a subject with quantitative expressions.

核技术的应用从根本上改变了考古学的面貌，使之逐渐成为定量表达的科学。

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Because ultrasound does not use ionizing radiation, unlike radiography, CT scans, and nuclear medicine imaging techniques, it is generally considered safer.

超声由于不使用电离辐射，与摄片，CT扫描和核医学成像技术，它通常被认为更安全。

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This method can be applied in other nuclear analysis techniques.

可推广应用于其它的核分析方法。

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Under the moratorium, our laboratories have maintained our arsenal through the Stockpile Stewardship Program without underground nuclear testing, using techniques that are as successful as they are cutting edge.

WHITEHOUSE: VP Biden: The Path to Nuclear Security

Since 1992, in the place of testing, the United States has relied for "stockpile stewardship" on a host of computer-modeling, other simulation techniques and non-nuclear explosive tests that have provided insights into the performance of an aging arsenal.

CENTERFORSECURITYPOLICY: Are we serious about deterrence?

Conflict resolution didn't exist as a field when Dr. Spock reigned, but a generation of scholars has introduced new techniques to resolve showdowns, from nuclear-arms pacts to general strikes.

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