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提问人:网友anonymity 发布时间:2022-01-06
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For a long column of fireclay brick, 6m×6m on a side and steady-state conditiou. four main surfaces

are maintained at 300K, and two corner sufacces are adiabatic. For Δx=Δy=2m and the thermal conductivitry of brick is 1.0 W/m K, working out the following problems.
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更多“For a long column of fireclay brick, 6m×6m on a side and steady-state conditiou. four main surfaces”相关的问题
第1题
稳态误差 ( steady state error)
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第2题
The ideal inductor acts as a circuit under steady-state DC condition.

A、short

B、open

C、resistance

D、conductance

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第3题
If a decision by a programmer results in a violation of coding standards, the programmer should ________.

A、check with the manager to determine whether the code can stand as it is

B、keep the code in violation and hide the fact

C、rewrite the code to meet standards

D、argue that the standards do not apply to every kind of code

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第4题
听力原文: Good morning everyone. My name is Craig Stone, and I'll be your guide for today's tour of Kyoto. First, I want to go over the itinerary &the tour, so everyone can enjoy the trip without being worded about being left behind along the way. Of course, no one has gotten lost so far.

First of all, we'll be leaving at 9:15 outside the main train station exit. Be sure to board the bus by 9:00 sharp.

We'll be visiting some of the most famous historical spots in Kyoto. Our first stop will be at the Golden Pavilion. a temple constructed in 1397. We'll be leaving there at 10:30. You'll have about forty-five minutes to stroll around the temple and its gardens.

Our next destination will be Ryoanji Temple. That's always a difficult one to pronounce. This temple is famous for its beautiful rock garden. We'll depart from the temple at 11:45.

Next, we'll have lunch bum 12:00 to 12:45.

In the afternoon, we'll be making a brief stop at Heian Jingu Shrine, which was constructed in 1895 m commemorate the 1,100th anniversary of the founding of the city of Kyoto.

After that, we'll head downtown and stop in Gion. Many people asked me about different traditional shopping areas, and this is a place we don't want to miss. You'll have about an hour to look around, and I'm sure you'll enjoy the atmosphere of the entire area--the shops, the homes, and the restaurants. We'll be leaving Gion at 2:30.

Finally, we'll visit Nijojo Castle, which was the residence of the first Tokugawa Shogun. You'll have about an hour to tour the castle, and we'll meet at the bus at 4:00.

(33)

A.At 9:00.

B.At 9;15.

C.At 9:50.

D.At 9:30.

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第5题
Il travaille beaucoup pour que ses enfants vivre heureusement.

A、peuvent

B、pourront

C、pourraient

D、puissent

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第6题
The domestic economy in the United States expanded in a remarkably vigorous and steady fashion. The revival in consumer confidence was reflected in the higher proportion of incomes spent for goods and services and the marked increase in consumer willingness to take on installment debt. A parallel strengthening in business psychology was manifested in a stepped-up rate of plant and equipment spending and a gradual pickup in expenses for inventory. Confidence in the economy was also reflected in the strength of the stock market and in the stability of the bond market. For the years as a whole, consumer and business sentiment benefited from the ease in East-West tensions.

The bases of the business expansion were to be found mainly in the stimulative monetary and fiscal policies that had been pursued. Moreover, the restoration of sounder liquidity positions and tighter management control of production efficiency had also helped lay the groundwork for a strong expansion. In addition, the economic policy moves made by the President had served to renew optimism on the business outlook while boosting hopes that inflation would be brought under more effective control. Final]y, of course, the economy was able to grow as vigorously as it did because sufficient leeway existed in terms of idle men and machines.

The United States balance of payments deficit declined sharply. Nevertheless, by any other test, the deficit remained very large, and there was actually a substantial deterioration in our trade account to a sizable deficit, almost two-thirds of which was with Japan. While the overall trade performance proved disappointing, there are still good reasons for expecting the delayed impact of devaluation to produce in time a significant strengthening in our trade picture. Given the size of the Japanese component of our trade deficit, however, the outcome will depend importantly on the extent of the corrective measures undertaken by Japan. Also important will be our own efforts in the United States to fashion internal policies consistent with an improvement in our external balance.

The underlying task of public policy for the year ahead--and indeed for the longer run--remained a familiar one: to strike the right balance between encouraging healthy economic growth and avoiding inflationary pressures. With the economy showing sustained and vigorous growth, and with the currency crisis highlighting the need to improve our competitive posture internationally, the emphasis seemed to be shifting to the problem of inflation. The Phase Three Program of wage and price restraint can contribute to reducing inflation. Unless productivity growth is unexpectedly large; however, the expansion of real output must eventually begin to slow down to the economy's larger run growth potential if generalized demand pressures on prices are to be avoided.

The author mentions increased installment debt in the first paragraph in order to show ______.

A.the continuing expansion of the economy

B.the growth of consumer purchasing power

C.the consumers' confidence in the economy

D.the soaring consumer incomes for spending

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第7题
Give an example to illustrate the Non-slip coudition for transport processes
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第8题
Convective heat transfer
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第9题
For the fully developed lammar flow in a cricular pipe, the Nu= ______fof constant wall heat flux.
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第10题
Which are the flow properties in the following parameters? Answer:______

A.Speed of Sound B.Velocity C.Specific Heat D.Pressure

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