NHK电视台传送的航拍图片，柱状火焰从一个炼油厂升起，洪水吞没了仙台机场，幸存者聚焦在机场建筑物的屋顶上。
NHK television transmitted aerial images of columns of flame rising from an oil refinery and flood waters engulfing Sendai airport, where survivors clustered on the roof of the airport building.
研究海道测量海洋底质沉积物柱状样品处理技术与方法。
The paper researches on the technique and methods of the columned sample processing of the seabed sediment in hydrographic survey.
介绍了沉积物柱状样超声透射法测量方法和原理。
The measurement and principle of ultrasonic measurement of sediment core are introduced.
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