What keeps this vast system clean is a web of earth, plants and animals; when water cannot be in touch with these it is no longer a sustainable and healthy system.
而能保持这一庞大水系统洁净的则是由泥土、植物、动物组成的网络。当水不接触它们时，这个系统就不能再保持正常了。
From icy comets to Earth's vast oceans, our solar system is chock full of water, yet so far no one has been able to demonstrate how it formed in the first place.
从冰冷的彗星，到地球浩瀚的海洋，我们的太阳系充满了水，但到目前为止，还没人证明它最初是如何形成的。
In IBM's water-cooling system, the processors and several other parts in the computer are cooled with water that is no warmer than 140 degrees Fahrenheit.
应用ibm的水冷却系统，计算机处理器和其他部件被冷却不会超过华氏140度。
And there is room for improvement in some areas: the Boulder parking lot, which predated the new building, is not permeable. There is no gray water system.
在一些地区，需要改进的空间：先于新建筑的大型停车场，具有不透水性，无灰水系统。
In an emergency it is Paramount that the deluge system delivers water where it is needed at the correct pressure, no matter the situation.
在发生紧急情况时，消防水喷淋系统都必须保证可以向任何位置输送恰当压力的水。
Environmental protection: adopt unique dust-cleaning equipment, water dregs system, in normal operation, no particles dust produced in complete combustion flue gas emissions have.
环保：采用独特的除尘装置，水出渣系统，在正常运转中无颗粒粉尘产生，在完全燃烧时无烟气排放。其工作过程符合国家相关环保排放指标。
Therefore, the copper plain tube in HP heaters can be replaced with the steel spirally fluted tube for the requisition of having no copper in boiler feed water system.
因此，可以采用钢质螺旋槽管替代高压加热器中的铜光滑管，实现锅炉给水系统无铜化运行的要求。
The paper introduces the design of closed-circuit soft water cooling stave control System used in No. 3 blast furnace in Baosteel.
本文介绍了在宝钢3号高炉上采用的软水密闭循环冷却壁控制系统的设计。
But at present, the traditional fire compartmentalization and facilities are no longer suit - able for the subway, whereas the new box-type water curtain system is more suitable in the subway fire.
但是，目前传统的消防分区及消防设施都不适合在地铁火灾中使用，而新型箱式水幕系统是较适用于地铁火灾中的一种消防系统。
Results show that the sodium chloride - hydrogen peroxide - water ternary system is simple and no adduct forms in the system.
结果表明，氯化钠—过氧化氢—水是简单的三元体系，没有复盐的生成。
Introduction was given to the principle of auto-control system for constant filtration velocity and constant water level in No.
介绍了东莞第三水厂恒滤速、恒水位过滤自控系统的原理，探讨了水位控制精度低的原因及改进方法。
A solar water heater system is installed above the House. The water is heated up by solar power instead of electricity or fuel, so no carbon dioxide is emitted in the process.
部屋的屋顶上安装了太阳能热水系统，以太阳热力加热水管中的水，毋须耗用电力或燃料，不会排放二氧化碳。
In-Line pumps are mainly used to water supply for high buildings, booster pipeline pumps, fire fighting and air condition system with virtually no noise or vibration.
管道泵主要用于高层建筑供水、管道增压、消防喷淋和中央空调循环系统，具有振动小、噪音低的特点。
Closed-loop control system to adapt to changes in water, adjust online implementation, and ensure the end of pipe network constant stress, there is no artificially adjust the lag phenomenon.
闭环控制系统适应水量的变化，实现在线调整，保证管网末端压力恒定，不存在人为调整的滞后现象。
This paper introduces the operating process and control system of the secondary cooling water of the new billet caster in No. 3 steelmaking plant of Magang.
介绍了马钢第三炼钢厂新建方坯连铸机二冷水系统的工艺过程及其控制与特点。
This paper introduces the operating process and control system of the secondary cooling water of the new billet caster in No. 3 steelmaking plant of Magang.
介绍了马钢第三炼钢厂新建方坯连铸机二冷水系统的工艺过程及其控制与特点。
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