Fresh water is used for the cooling of cylinder jackets and () of the marine diesel engine.
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Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for () and supercharging.
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In a domestic fresh water system, the pump starters are controlled by () switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.
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Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in ().
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Seawater may be used for drinking water ().
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The main engine is cooled with fresh water ()is added suitable small quantities of chemicals to prevent corrosion.
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If a small electric motor is immersed in salt water it should be () (1) washed in fresh water (2) dried in an oven
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The motor for the fresh water pump ().
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What are the most important reasons for using water fog to fight fires?()
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()provides strength and strong space for fule,lubricating oil,fresh water,salt(ballast)water and potable water.
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There will usually be summaries or daily account tables for heavy oil, diesel oil, lubricating oil, and fresh water, which will be compiled()
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The steam boiler is part of a closed loop steam, whereby, after the energy of the steam is used up and it becomes water again, () is collected and returned back to the boiler for heating up again to steam.
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The most common type of containment device for spilled oil on the water is the use of ().
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In a vacuum boiling evaporator, the fresh water generated is pumped out by ().
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Which statement concerning the collection of fresh water is FALSE?()
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Which day is designated as the World Water Day by the 47th United Nations General Assembly?
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__________most of the earth‘s surface is covered by water, fresh water is very rare and precious.
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One of the most important lakes in the United States is______, which is the largest fresh water lake in the world.
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The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
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听力原文:W: Jane is really disappointed. She was expecting Bob to bring fresh fish for tonight's dinner.
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Man depends on water for many things. He needs it for drinking. He needs it for growing food. He needs it for keeping himself clean and free from illness. He needs more and more water for industry. People often forget how necessary water is for industry. Imagine, for example, the immense quantities of water used by the great cooling towers of steel works. The demand for water is growing every day. It is closely connected with the increasing population and with the pressing problem of providing enough food. But the world has not yet found ways of storing enough water to satisfy all these important needs, not even in west countries like England. Great efforts are being made today to store water, particularly in hot countries where the rainfall is small.
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For a company that prepares its financial statements under International Financial Reporting Standards (IFRS), for which of the following assets is it most likelythat the company could report using th
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After some water reducing agent is used into concrete, the function of the agent is()if some water is reduced
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ABC purchased display shelves on March 1,2019 for $12,000. If this asset has an estimated useful life of five years and the company adjusts its account montly. At the the date of April 30th, 2019, the balance in Shelf account is $12000.()
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