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People now pay as much for water as they did 200 years ago. People now pay as little for water as they did 200 years ago. Water now costs as much as it used to. Water now has become more expensive than it was.
To prove that water is as expensive as oil. To warn the world of a possible water supply crisis. To call people’s attention to the importance of energy conservation. To shock the people of the world into saving water.
working at intervals and properly heating warming up to 70 ℃, increase water supply flow improving impulse of water supply reducing water supply flow
Africa. The southern hemisphere. Egypt. All the developed countries.
The increase of population. The use of washing machines. The use of flush lavatories. The popularity of swimming pools.
a. How much fresh water is tied up in glacial ice 75 % of the Earth’s fresh water supply. 90% of the Earth’s fresh water supply. Enough to support human beings for 1,000 years. As much as the water from 10,000 trillion metric tons of ic
water supply fuel oil supply lube oil supply exhaust damper
priming water power supply packing gland bearing lubrication
The increase of population. The use of washing machines. The use of flush lavatories. The popularity of swimming pools.
seal water supply be cut off make up water supply be cut off oil outlet valve closed or not open sufficiently the flow rate of oily water is too much
air supply is shut off fuel supply is shut off water supply is shut off safety valve lifts
calling people’s attention to the true value of water blowing up dams that affect the supply of fresh water adopting sound water conservation policies finding the best way to distribute the world’s water
calling people’s attention to the true value of water. blowing up dams that affect the supply of fresh water. adopting sound water conservation policies. finding the best way to distribute the world’s water.
People now pay as much for water as they did 200 years ago. People now pay as little for water as they did 200 years ago. Water now costs as much as it used to. Water now has become more expensive than it was.
To prove that water is as expensive as oil. To warn the world of a possible water supply crisis. To call people’s attention to the importance of energy conservation. To shock the people of the world into saving water.
is already serious in certain parts of the world has been exaggerated by some experts in the field poses a challenge to the technology of building reservoirs is underestimated by government organizations at different levels
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