At present, system research of Chiangnan rural water environment is few, water landscape development pattern related research is especially rarely seen.
目前，有关江南乡村水环境的系统研究较少，水体景观利用开发的模式研究尤为鲜见。
The index system of sustainability measure of water environment is constructed by wetland water environment structure, the state of wetland functions and human factors.
湿地水环境的持续性度量的指标体系是从湿地水环境系统结构、功能状态和人为因素三个方面构建的。
Water hydraulic drive system has some advantages of oil hydraulic transmission such as large power, high efficiency and compact structure as well as the unique advantage of environment-protection.
水压驱动系统既保持了油压传动传递动力大、效率高和元件体积小的优点，又兼有环保的积极作用。
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