The ultrasonic measurement results are compared with light extinction method measurement, which shows this method has a good foreground for particle sizing.

测量结果与消光法测量进行对比，表明该方法应用到颗粒粒度大小测量是切实可行的。

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It is considered that the light extinction characteristic of ship wake is an important property for underwater target's tracking, recognition and positioning.

认为舰船尾流的消光特性是水下航行体跟踪、识别和定位目标的重要参数。

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So the third chapter focuses on the measuring system. The operating principle (Light extinction method), the factors which influence the result and the resolvent to avoid them are explained.

第三章对此磁致偏振特性测量系统的搭建及工作原理（消光法）、影响测量结果的因素及解决方法、实验操作步骤等作了说明。

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Besides bringing new species to the textbooks - and relegating them immediately to the "extinct" category - the study sheds new light on the extinction event, widely thought to have been caused by an enormous asteroid impact at the end of the Cretaceous period, about 65.5 million years ago.

BBC: Obama-named lizard was wiped out with the dinosaurs

On October 3, the Army and Marine Corps issued a revised solicitation aimed at saving their Joint Light Tactical Vehicle from extinction at the hands of Congress.

FORBES: Army Mistakes Endanger Future Jeep