The features of double walled cylindrical explosion containment vessels closed with flat heads are presented.

本文介绍了平封头的圆柱形双层爆炸容器的设计特点。

youdao

Up to 3m people throng its narrow alleys every day, many of them balancing flat-screen televisions on their heads as if they were buckets filled with water at the village well.

每天有大约三百万人在城市拥挤的街道中川流不息，许多人就像注满水的桶一样，头顶着一部平板电视机。

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The completion of the foundation buried stone heads, four measurements, a flat wire measurement, substandard level of measurement, map the root control field data collection and data editing.

完成了基础埋石、首级四等测量、一级平面导线测量、等外水准测量、图根控制等野外数据采集以及数据编辑工作。

youdao

There was a burst of shouting from across the street, and the doors of a dark-shingled flat-roofed building opened, letting loose several men, who were jamming caps on their heads and banging lunch buckets against their thighs.

NEWYORKER: Amundsen

Other spending heads will face the same squeeze as all those public sector workers if their cash allocation flat-lines - 4 to 5% this year, maybe down below 3% next year, but still requiring a deeper real terms cut than officially recognised by the 2.9% inflation rate currently assumed by the Office of Budget Responsibility.

BBC: Budget challenge