An improvement on the method is made by using concentrated water sample in order to increase the concentration of trace elements in the samples.

该文对这一方法进行了改进，采用浓缩水样以提高待测元素的含量，并加入二氯化钙作为释放剂来消除硅的干扰。

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This verification must succeed in order for the sample application to work.

上述验证必须成功，这样才能保证示例应用程序正常运行。

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Since the Crime and Security Act became law last year, police have had powers to force thousands of past offenders across England and Wales to provide a DNA sample in order to help solve serious crimes such as murder, rape and manslaughter dating back up to 40 years.

BBC: A DNA autoradiogram

"We are now collaborating with colleagues to sample patients in order to demonstrate the strengths, as well as limitations, of breath analysis more comprehensively, " she said.

BBC: Lung infection identified using 'breath-print'

Then, the waves' frequency is tweaked and the sample blasted head-on in order to heat it.

ECONOMIST: Acoustic microfluidics