Seamless mild steel is used for steam (also copper for moderate pressure and temperature), h-pair, feed discharge and all oil fuel pressure pipingsAccording to the above sentence, which of the following statements is not true?()
相似题目
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The joint formed when two steel plates are placed end-to-end is called a().
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() are two vertical supports,usually steel,one each side of the centerline of the ship used to support booms.
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Each cylinder is closed at the top by a (), made of a special heat-resistant steel.
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The crankshaft is of the semi built type, with the journal () the forged or cast steel crank throws.
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Strengthening damaged bulkheads by using wood or steel is called().
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The procedure of strengthening damaged structures on a ship by using wood or steel is called().
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The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?()
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What is the purpose of cant frames in steel vessels? ()
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A cast steel strong back is fitted in way of the combustion space to help absorb ().
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A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?()
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A heavy,thick-walled tube,usually steel,used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a().
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Cast iron and gunmetal fittings are used freely in small sizes at moderate pressure; large fittings, those for high pressure and temperature are cast or mild steelIn the above sentence, the word “those” means ().
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A record of the types and strengths of steels used on a ship must be included in the().
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To reduce mild fever the MOST useful drug is().
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Stainless steel is material commonly used for temperatures up to 50℃; beyond that and for severe corrosive conditions other materials are requiredThe bold and italic word “that” probably means ().
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A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a().
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when we state our opinion or express our disapproval, it is appropriate to express it in a mild way by saying:___
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Autism is a series of disorders that can ____ from mild to severe.
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When carbon is added to iron in proper ________ the result is steel.
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Enter the information age. Information is the raw material for many of the business activities【62】this new era, just as iron and steel were the basic commodities in the【63】of the industrial age.
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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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()is more suitable for bulk cargo or unpacked cargo such as logs,steel bars,pipes,etc.
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The tune of Kun opera is so mild, exquisite, sentimental and melodious that it is commonly called shuimodiao—water-polished music()
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When carbon is added to iron in proper__, the result is steel()