用介词短语来代替状语从句

用介词短语来代替状语从句

1. While it is being compacted, considerable lateral横(向)的pressure is exerted by concrete.

2. If pressure is constant, gases will expand when heated.

3. If values of W are small, the impedance of the capacitor is large relative to R.

4. When temperatures are greater than 60℃，this equation does not apply.

5. While it is being compacted, considerable lateral pressure is exerted by concrete.

• During compacting/compactification, (a) considerable lateral pressure is exerted by the concrete.

• At/For/With constant pressure, gases will expand when heated. • For/With small values of ω, the impedance of the capacitor is large relative to R.

• At/With temperatures greater than 60oC, this equation does not apply.

名词短语代替状语从句

6. If the diode is analyzed physically, it can be shown that

7. In this case electrons will possess more energy, so that the brightness of the spot can be increased.

A physical analysis of the diode shows that

• In this case electrons will possess more energy, thus increasing the brightness of the spot.

1.Some water which has been distilled some distilled water

2.A bridge which has been incorrectly designed an incorrectly designed bridge

3.The substances which are not known the unknown substances 4.A problem which has still not been solved an unsolved problem 5.Satellites which are made by man man-made satellites 6.Signals which are modulated in amplitude振幅amplitude-modulated signals

7.Steel which is plated with chromium铬chromium-plated steel 8.Pumps which are driven by wind wind-driven pumps 9.The instruments which are used the instruments used

10.The number of mistakes which have been found the number of mistakes found

11.The new cars which a used for racing the new racing cars 12.Paper which is used for drawing drawing paper 13.Bodies which fall freely freely falling bodies

14.A country which produces oil an oil-producing country 15.The point at which it boils the boiling point

16.Material is tested in this way material so/thus tested 17.Paper which has blue lines blue-lined paper

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18.A saw which has wide teeth a wide-toothed saw

19.A triangle which has acute angles an acute-angled triangle

将下面句子翻译虚拟语气

若没有半导体(semiconductor),卫星通讯(satellite communications)就不可能了。 ②我们本来也可以用定理(theorem)(6)来导出(derive)式(5) ③一旦出现什么情况,尽快让我们知道。

④数字(digital)设计人员(designer)很好地了解布尔代数(Boolean algebra)是十分必要的。

⑤有人建议在太空制造药物(drug).

⑥这来自于输出要稳定(stable)这一需要(necessity)。 ⑦其条件是(x-a)为一个根(root)。

⑧这根传输线(transmission line)的作用好像它是开路(open-circuit)似的。 ⑨我们周围的一切东西,无论是空气、水还是木头(wood),都是物质

1 Without semiconductors, satellite communications would be impossible.

2 We could also have used Theorem (6) to derive Eq. (5). 3 Should anything happen, let us know as soon as possible.

4 It is quite essential that digital designers (should) have a good knowledge of Boolean algebra.

5 It is suggested that drugs be made in space.

6 This comes from the necessity that the output be stable. 7 Its condition is that (x – a) be a root.

8 This transmission line acts as if it were open-circuit. 9 Everything around us, be it air, water or wood, is matter. 名词化结构主语

1. If the thickness of the lagging（绝热材料）is increased, it will reduce the heat losses.

2. If machines are tested by this method, there will be some loss of power.

3. If the temperature rises by 50℃, it would result in a in Zener voltage of 3.75%. 4. If these listings are studied , it will greatly help the programmer in finding any errors made in writing the program. 5. If the diode（二极管）is physically analyzed, it will be shown that the current and voltage are related by the following equation • An increase in the thickness of the lagging will reduce the heat losses.

• The testing of machines by this method will entail/result in some loss of power.

• A temperature rise of 50oC [OR: A rise in/of temperature by 50oC] would result in a change in Zener voltage of 3.75%.

• A study of these listings will greatly help the programmer in

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.

finding any errors made in writing the program.

• A physical analysis of the diode shows that the current and voltage are related by the following equation. •

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