-
The joint formed when two steel plates are placed end-to-end is called a（）.
A . bevel
B . seam
C . butt
D . bond
-
（） are two vertical supports，usually steel，one each side of the centerline of the ship used to support booms.
A . Shrouds
B . King posts
C . Stays
D . Turnbuckle
-
Each cylinder is closed at the top by a （）, made of a special heat-resistant steel.
A . cylinder liner
B . coupling flange
C . cylinder cover
D . piston crow
-
The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.
A . being shrunk into
B . to be shrunk into
C . to be shrunk with
D . shrinking into
-
Strengthening damaged bulkheads by using wood or steel is called（）.
A . bracing
B . battening
C . blocking
D . shoring
-
The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.
A . bracing
B . battening
C . blocking
D . shoring
-
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?（）
A . main bearing shells
B . main bearing
C . steel
D . bearing metal
-
What is the purpose of cant frames in steel vessels? （）
A . To support the overhang of the stern
B . To provide strength to shell plating at the stern
C . To add strength to the deck beams which support the weather decks
D . To support the plating of a cylindrical tank
-
A cast steel strong back is fitted in way of the combustion space to help absorb （）.
A . flame temperature
B . fuel oil
C . air movement
D . gas force
-
A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）
A . The aluminum will provide greater resistance to the spread of fire by conduction
B . The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals
C . If the superstructure is stressed，an aluminum structure requires additional expansion joints to prevent fracture
D . The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosio
-
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（）.
A . heavy-walled drill pipe
B . tool joint
C . down hole tool
D . drill collar
-
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 （）.
A . east iron firings
B . mild steel fittings
C . small fittings
D . large fitting
-
A record of the types and strengths of steels used on a ship must be included in the（）.
A . general plans
B . builder's documentation
C . Certificate of Inspection
D . construction portfolio
-
To reduce mild fever the MOST useful drug is（）.
A . bicarbonate of soda
B . paregoric
C . aspirin
D . aromatic spirits of ammonia
-
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 （）.
A . stainless steel
B . temperature
C . 50℃
D . other material
-
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
A . snatch block
B . threefold purchase
C . handy-billy
D . chockablock
-
when we state our opinion or express our disapproval, it is appropriate to express it in a mild way by saying:___
-
Autism is a series of disorders that can ____ from mild to severe.
-
When carbon is added to iron in proper ________ the result is steel.
-
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.
The world's knowledge is said to be doubling every eight years. This knowledge【64】is stimulating economic progress. The need to collect, analyze, and communicate great【65】of information is producing new products and services, creating jobs, and【66】career opportunities.
The information age is【67】considered to be a phenomenon of the service sector of the economy,【68】than a product of heavy industry. Certainly, rocketing information technologies are creating new capabilities【69】knowledge-based service spheres.【70】changes just as dramatic are【71】industry, giving people the【72】to do challenging work in exciting new ways.
Manufacturing is full【73】in the information age. From design to production, the manufacturing【74】has long been information-intensive. It always has required exacting communication to describe what goes into products and how to make them. Now, computer technology is giving factory managers new【75】to gather all of this information and use it to control production.
Telecommunications are producing error-free communication between the design office and the factory. Computer-aided design is enabling engineers to【76】product performances and manufacturing process on video displays, before resources are committed to build and test prototypes. Techniques like these are bringing【77】new advances in manufacturing productivity. Just as coal fueled the【78】to an industrial society, so microelectronics is powering the【79】of the information age. Microelectronic information management tools are【80】U.S. industrial capabilities, which remains【81】to America's economic wellbeing and national security.
(63)
A．seeking
B．stimulating
C．shaping
D．securing
-
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.
Three-quarters of the world is covered with water. But only three percent of this water is fresh. All the rest is salt, and fills the oceans and the great inland seas. It is the salt that makes sea water useless to man. If you take the salt away the water can be used for drinking and for watering plants.
In 1962 President John Kennedy of the United States said, "When man discovers how to mm salt water into fresh water cheaply, he will have made a much more important scientific advance than when he first landed on the moon".
Human beings need water for【46】,【47】and【48】and【49】.
Main idea: The【50】
-
（）is more suitable for bulk cargo or unpacked cargo such as logs，steel bars，pipes，etc．
<img src='https://img2.soutiyun.com/ask/uploadfile/2748001-2751000/15ca9f68da3e7ecbceaeb06ef72eacd0.gif' />
-
The tune of Kun opera is so mild, exquisite, sentimental and melodious that it is commonly called shuimodiao—water-polished music（）
是
否
-
When carbon is added to iron in proper__, the result is steel（）
A．rates
B．thicknesses
C．proportions
D．densities
