There was no significant effect of burying depth on the underground biomass and root distribution, but the root density increased at each burying depth of drip irrigation emitter.

不同埋设深度对高羊茅根系分布有一定的影响，在每个滴头附近的根系密度和重量明显增加。

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This article mainly introduce the basic principles and application method of FEMLAB, including draw charts, create mesh work, solve overview and application for designing the drip irrigation emitter.

为此，重点介绍了该软件的基本原理与应用方法，包括图形绘制、网格生成、解答器等过程，以及它在滴灌设备研发中的应用。

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Emitter is the most important equipment in drip irrigation system. Its capability directly influences the quality and cost of drip irrigation.

灌水器是滴灌系统中最关键的设备，其性能的优劣直接决定灌溉质量和滴灌工程的造价。

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