固定方式：采用暗式螺钉和异形件方式固定。

Fixing mode: it is fixed by means of concealed screw and shaped part.

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采用室内试验方法模拟田间暗式坐（注）水灌溉，并对水分扩散进行研究，描述暗式坐（注）水灌溉的水分浸润、扩散过程。

In this paper, the indoor test is made to simulate field water injection irrigation, and the moisture diffusion process is studied systematically.

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较暗的圆圈就表示提供开放式数据的机构。

The darker bubbles are the agencies that offer open data.

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