In the field criterion , taking the field holard as a center, the model has considered the exchange and transformation of the moisture content between different mediums;
模型在田间尺度上以田间土壤水为中心，考虑了水分在不同介质之间的交换和转化；
词源
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holard:
From Ancient Greek ?λο? ?(hólos, “whole”) + ?ρδω ?(árdō, “to water, to irrigate”).