Arranged in barrels of concrete or plastic, these biosand water filtration systems (BSFs) remove 95 to 99 percent of the bacteria, viruses, worms and particles contained in rain or surface water.
通过混凝土桶和塑料桶的处理，生物沙子饮用水过滤系统可以净化95％到99％的细菌、病毒、蠕虫、雨水或者地表水污染颗粒。
Traditional geothermal plants exploit natural systems in which water seeps down into porous rocks in the ground and emerges back at the surface at a high temperature.
传统的地热发电厂利用了这样一种自然系统，即水分下降至地壳的渗透岩层中，而后又受热蒸腾到地表。
In this paper, a new kind of reagent which is used in leaching lead from surface of brasses in drinking water systems is studied, such as pipes, fittings and faucets.
研究试制了一种用于黄铜管道、水龙头和管接头等饮用水系统用零件的表面脱铅的脱铅试剂。
The surface water treatment systems without clarifying basin and Valveless Filter Base were introduced.
介绍了以地表水为水源的水处理系统设计中，不设计澄清池与无阀滤池的另类系统。
The optimal models of surface and ground water system were set up based on the theory and method of water resource systems.
据此，采用系统分析理论和方法，建立地表水和地下水系统分配优化模型。
Designed for tap, well, or surface water applications, AdEdge Reverse Osmosis Systems reduce total dissolved solids using advanced membrane technology.
为水龙头、井和地表水的应用而设计，使用隔膜技术可减少溶解固体总量。
Water resources systems of irrigation district are composed with surface water system and groundwater system.
灌区水资源系统由地表水系统与地下水系统构成。
It was pointed out that surface water temperature rise might cause the heat pollution, which was practically neglected in previous application of surface water heat pump systems (SWHPs).
在以往的地表水源热泵设计中，忽略了地表水体的温升可能造成的热污染隐患。
Explains in detail the technique and operating procedure of chemical cleaning for the refrigerant water and chilling water systems and the inside and outside surface of the chiller unit.
详细阐述了溴化锂吸收式制冷机的冷媒水系统、冷却水系统以及机组内部和外部的化学清洗技术和操作方法。
River filtration systems purify surface water flowing through this system to some extent, but degree of purification is not known.
河流渗滤系统对入渗的地表水有一定的净化作用，过去人们很少从理论上研究河流渗滤系统对污染河水的净化作用。
Surface water, such as river or lake, and urban sewage are cooling and heating resources of heat pump systems, which are considerable and spectacular in amount.
江河、湖泊等地表水和城市污水是两类数量巨大、极引人注目的水源热泵冷热源。
Surface water, such as river or lake, and urban sewage are cooling and heating resources of heat pump systems, which are considerable and spectacular in amount.
江河、湖泊等地表水和城市污水是两类数量巨大、极引人注目的水源热泵冷热源。
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