Spatial variability of soil water retention function is a primary prerequisite for quantitative research on water movement and solution transfer in unsaturated zone.
土壤水分特征函数空间异质性是定量研究土壤非饱和带水分运动以及溶质运移的先决条件。
On the basis of the experimental data in farmland, a function relationship between the potential evapotranspiration and the relative water content of the soil in the root zone was established.
以田间实验资料为基础，建立农田蒸散量和土壤相对含水量与潜在蒸散的函数关系。
Land-lake ecotone refers to the function frontal zone between internal water ecosystem and the land ecosystem.
水陆交错带是指内陆水生生态系统与陆地生态系统之间的功能界面区。
The paper introduces the circuit design and its function used for water supply of residential zone by adopting TD2100 converter to control four pumpers with circulation soft start.
介绍了利用TD 2 10 0变频器控制四台泵循环软起动，实现小区供水的电路设计及控制功能。
The paper introduces the circuit design and its function used for water supply of residential zone by adopting TD2100 converter to control four pumpers with circulation soft start.
介绍了利用TD 2 10 0变频器控制四台泵循环软起动，实现小区供水的电路设计及控制功能。
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