中心偏移下摆焊缝背面。

Center back seam with offset hem.

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辐射角及中心偏移，是定向X射线探伤仪的重要技术指标。

Radiation Angle and central deviation is important parameters of an X-ray directional flaw detector.

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本文为系统设计和进一步研究天线相位中心偏移方位多波束系统的成像处理方法提供了参考。

The paper provides the reference for system design and further studying on imaging algorithm of displaced phase centers multiple azimuth beam SAR.

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