Elemental iodine is used in medicine, in synthesizing some organic chemicals, in manufacturing dyes, in analytical chemistry to measure fat saturation and to detect starch, and in photography. The radioactive isotope iodine-131, with an eight-day half-life, is very useful in medicine and other applications

元素碘用于医药、合成有机化学物、制造染料,以及在分析化学中测量脂肪饱和和检测淀粉,还用于摄影术。放射性同位素碘-131的半衰期为8天,在医学和其它应用中都很有用。

属类：化学及生命科学-化学-

Crude microscopes date to the mid-15th century, but not until 1674 were the powerful microscopes of A. van Leeuwenhoek able to detect phenomena as small as protozoa.

原始的显微镜可追溯到15世纪中期,但直到1674年列文虎克才发明高倍的显微镜,能观察到小如原生动物的现象。

属类：工程技术-机械与工具-

Moreover, even an elementary knowledge of this branch of mathematics is sufficient to enable the journalist to avoid misleading his readers, or the ordinary citizen to detect the attempts which are constantly made to deceive him.

再者,即使数学中这一分科的初步知识,也足以使记者避免将其读者引入歧途,或者使普通人识破常常用来欺骗他们的企图。

属类：工程技术-科技英语-

These are needed for various experiments and procedures in molecular biology, forensic analysis (DNA fingerprinting), evolutionary biology (to amplify DNA fragments found in ancient specimens), and medicine (to diagnose genetic disease or detect low viral counts).

在分子生物,法院鉴定(DNA指纹分析),演化生物学(对远古标本的DNA片段进行放大)以及医学的各种实验和过程中都需要进行这种反应。

属类：化学及生命科学-化学-

Place ‘tax-paid’ markings on tobacco products, these clearly distinguish between legal and illegal goods, making contraband products easier to detect and trace, and the law easier to enforce.

在烟草商品上加贴“已缴税”标签,这能清楚的区分合法和非法商品,使走私商品能够被容易调查和追踪,使法律更容易执行。

属类：法学专业-美国法律-走私

This police officer's job is to detect fraud.

这位警．官的职责是侦查诈骗案。

属类：综合句库--

This police officer's job is to detect fraud.

这位警官负责侦查欺诈案.

属类：综合句库-典型例句-

Could detect only the merest whisper.

只能听到低低的私语

属类：综合句库--

to formulate and evaluate control and prevention measures;to detect outbreaks or epidemics and generate appropriate interventions

制定和评价控制和预防措施;查找疫病的爆发或流行,启动适当的干预行动

属类：行业术语-检验检疫-

mass spectroscopy A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph uses photographic or other nonelectrical means; either device is a mass spectroscope.

质谱计利用电场来检测分类好的离子,质谱仪则用照相或其它非电的方法来检测;两种设备都是质谱测定仪。

属类：化学及生命科学-化学-