Through the laboratory research and field experiment, the influencing mechanisms of lateral depth in non-pressure irrigation on soil water movement and crop growth are studied.
通过室内试验和大田试验，研究了无压灌溉方式下埋管深度对水分运移和作物生长的影响机理。
The paper also proposed the reasonable irrigation depth, irrigation saturation point and irrigation compensation point, which might provide theoretic basis to make out irrigation scheme of turf grass.
并确定出灌溉深度、灌溉饱和点和灌溉补偿点，为制定合理的草坪灌溉制度提供依据。
The arched section is one of the usually adoptive section shapes in flood discharge tunnels and irrigation tunnels, but the analytic expression of normal water depth for this section is not explicit.
普通城门洞形过水断面是泄洪隧洞和灌溉引水隧洞较常采用的断面形式之一，其水力计算中的正常水深求解无显函数形式的表达公式。
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