With 97% of the world's water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture.

由于世界上97%的水含盐量过高，不能饮用或用于农业，全世界的水供应需要谨慎管理，特别是在农业方面。

The shower is easy to install – it needs only to be connected up to the hot and cold water supply.

淋浴器很容易安装–只需接上冷热水即可。

Singaporeans still import 40% of their needs. Even so, they have a supply of water that is clean, predictably delivered and reasonably secure.

新加坡水资源的进口仍占40%，但尽管如此，其水资源的供给却可以保障清洁、顺畅、准确无误。

The other important trouble that very low water supplies creates is that cities have sold bonds based on their needs for infrastructure to move, clean and supply water.

水资源短缺带来的另一重大问题是基于市民对运送、清洁、供给水的设备的需求的债权的发行。

Many of the improvements in the learning environment targeted basic and critical infrastructure needs such as sanitation facilities, water supply, and repairing roofs.

改善学习环境的多项措施针对基本和重要的基础设施需求，如卫生设施、供水设施以及屋顶维修等。

The main objectives of the project are to improve water supply in Changchun to meet the domestic needs of the urban population, support industrial growth, and control urban water pollution.

本项目的主要目标是改善长春市供水条件，满足城市人口生活用水需求，支持工业增长，控制城市水污染。

There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.

泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。

There is not enough spring water to supply the needs of the house, so we should pump from the river for farm use.

泉水只能用于满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。

Conduct a thorough survey of the public water supply and waste management systems. Determine the needs for immediate repairs, and identify such areas on a map.

指导全面的公共水供给和浪费管理系统。为立即修复决定需求，并在地图上识别这些地区。

There is only enough spring water to supply the needs of the house, so we have to pump from the river for farm use.

泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。

The air at high altitudes does not have enough oxygen to supply the body's needs. Divers also carry extra oxygen because they cannot breathe under water.

在高空，空气含氧不足，无法供应身体需要。由于水下不能呼吸，潜水员也携带额外的氧气。

One of your most crucial needs is a supply of safe water.

你最重要的需求之一就是饮用水的供给。

Take constant pressure supply water system of life area for example, this paper introduces the needs and realization of variable-frequence constant-pressure supply water system using PLC.

以生活区的恒压供水系统为例，介绍了应用PLC实现变频恒压供水系统的需求分析和实现过程。

If the locally available water supply is not sufficient to meet the minimum needs of the displaced, arrangements must be made to bring in water by truck.

如果本地可用水不能满足难民的最低需求，必须安排卡车等运输工具运水进来。

Therefore, to fit for the water supply with different quality, the coagulation process needs to be optimized.

不同系列混凝剂具有不同的除浊、除有机物与除磷性能，需要结合分质供水的要求进行优化应用。

In chilly north, this product needs no extra electric heating and only needs a heating radiator for continuous supply of hot water.

本产品在北方寒冷的冰雪天，无需电加热辅助，只需你家有热水暖气片，太阳能热水则源源不断。