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專業八級改錯42練第9練

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We're all used thermomoeters to measure temperature but
sometimes we need to measure temperature in places you can't _1_
put a thermometer — for example, inside a rocket engine. One of the best methods for those really hard-to-get-to place _2_
is based on laser spectroscopy. Light from a laser pointing _3_
at the region of interest is absorbed by molecules and some of it are re-emitted back towards the source where it can be _4_
measured. The re-emitted light is shifted in frequency (changed in wavelength) by amounts that depend on the molecule and also the temperature and pressure of the surrounding gas _5_
because of collisions among the molecules. The single, sharp frequency from the laser is thus smeared out into a whole spectrum of frequency whose shape can be used to determine _6_
the temperature provided so that the molecular transitions _7_
and line shapes are known. Because it is the main component of the air, it is convenient to use nitrogen since its molecular _8_
properties are known from room temperature to temperature of about 1,200 degree Celsius from experimental measurements. _9_
Although this is a large range, it is a large range, it is far short of what it is needed for some applications. _10_

答案:

1. places + where

2. place-places

3. pointing- pointed

4. are-is

5 also + on

6. frequency-frequencies

7. provided so that去掉so

8. since-and

9. degree-degrees

10. what it is去掉it

重點單詞   查看全部解釋    
range [reindʒ]

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n. 范圍,行列,射程,山脈,一系列
v. 排

 
temperature ['tempritʃə(r)]

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n. 溫度,氣溫,體溫,發燒

 
determine [di'tə:min]

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v. 決定,決心,確定,測定

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thermometer [θə'mɔmitə]

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n. 溫度計

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measured ['meʒəd]

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adj. 量過的,慎重的,基于標準的,有韻律的 動詞me

 
source [sɔ:s]

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n. 發源地,來源,原始資料

 
absorbed [əb'sɔ:bd]

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adj. 一心一意的;被吸收的 v. 吸收;使全神貫注(

 
spectrum ['spektrəm]

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n. 光譜,范圍,系列

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frequency ['fri:kwənsi]

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n. 頻繁,頻率

 
pressure ['preʃə]

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n. 壓力,壓強,壓迫
v. 施壓

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