In the other hand, mechanically activated ecosystems, as living machines of low energy performance, purify water in situ, used for vegetation irrigation and transpiration.
另一方面，机械活化的生态系统，如低能源效率的家用电器，净化在原地的水，用于植被灌溉和蒸腾。
This extremely high level of performance can be achieved through careful daily programming that enables a pump station to operate at capacity throughout an irrigation cycle.
这种超高的水平的性能可以通过仔细的程序，让泵站在一个喷灌周期里满负荷的运转。
The soil temperature in different time performance different, but all are lower than that of drip irrigation under mulch film.
不同渗灌处理在不同时段内地温表现不同，但都比膜下软管滴灌略低。
Bai only from the Principle of pump performance and price adjustment in the irrigation pump price adjustment skills in the use of fortifications.
白文仅从水泵性能和调价原理探讨水泵调价技能在喷灌工事中的利用。
This paper aims at examining the influences of spatial variability of furrow sole fluctuation and cross-section shape on furrow irrigation performance.
针对沟灌，研究了沟底起伏状况和沟横断面形状的空间变异性对灌水质量的影响。
According to the theory of design of pure filter machine has the same performance, not easy jam, not frequent irrigation, cause the work to cycle greatly extended.
按此理论设计的精滤机具有同样效能，不易堵塞，不会频繁冲洗，使工作周期大大延长。
Drip emitters are key functional parts in the drip irrigation system, whose performance and cost determine the operating costs and efficiencies of the entire drip irrigation system.
灌水器是滴灌系统中的关键功能部件，其性能好坏对整个滴灌系统的使用效果起着决定性的作用。
The utility model has the advantages of simple structure, low manufacturing cost and reliable anti reverse irrigation performance.
具有结构简单，制造成本低，防倒灌性能可靠的特点。
Soil permeation characteristics is one of the important parameters determining the watering performance of furrow irrigation.
土壤入渗特性是决定沟灌灌水性能的重要参数之一。
A novel prediction model for hydraulic performance of trickle irrigation emitter based on modi? Fied PSO least square support vector machine is proposed and verified by experiment.
将基于改进粒子群优化最小二乘支持向量机的预测模型引入滴头水力性能预测领域，对所建立的滴头水性能预测模型分别从理论和试验两方面进行验证。
Because of these low-lying areas water lift is not high but the irrigation or drainage water a considerable loser should adopt a "low-head large flow" performance characteristics of axial flow pump.
这些地区由于地势低洼，提水扬程不高，但农田灌溉或排涝的输水量相称大，应该采用“低扬程、大流量”性能特点的轴流泵。
Because of these low-lying areas water lift is not high but the irrigation or drainage water a considerable loser should adopt a "low-head large flow" performance characteristics of axial flow pump.
这些地区由于地势低洼，提水扬程不高，但农田灌溉或排涝的输水量相称大，应该采用“低扬程、大流量”性能特点的轴流泵。
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