After water is carried in gas Wells, status of fluid flow and medium distribution become more complicated, its production performance detection will be more difficult.

气井出现载水现象后，井筒中流体的流动状态和介质分布将变得复杂，其生产动态监测更为困难。

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By using multiphase medium with different permittivity, the image of medium distribution could be obtained through measuring the obtained permittivity by capacitance sensor.

它是利用多相介质具有不同的介电常数，通过电容传感器测量获得介电常数分布而获得介质分布的图像。

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The measurement sensitive field of ERT sensor is affected greatly by medium distribution. Such soft field character is one of major difficulties in image reconstruction of ERT.

ERT传感器测量敏感场受被测介质分布的影响，这一软场特性是ERT图像重建中的主要困难之一。

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Newspapers, Mr Murdoch implies, must learn to understand their role as providers of news independent of the old medium of distribution, the paper.

ECONOMIST: The future of journalism: Yesterday's papers | The

Meantime, he seems to be doing okay by investing in content and distribution for a dying medium.

FORBES: Breaking: A Local Newspaper Chain That's Actually Making Good Money

With much of their distribution aimed at small and medium-sized firms, the machine will take the fight to Microsoft.

ECONOMIST: Software