首页
登录
职称英语
We’ve all used thermometers to measure temperature butsometimes we need to
We’ve all used thermometers to measure temperature butsometimes we need to
游客
2023-09-13
50
管理
问题
We’ve all used thermometers to measure temperature but
sometimes we need to measure temperature in places you can’t put 【S1】______
a thermometer — for example, inside a rocket engine. One of the
best methods for those really hard-to-get-to place is based on laser 【S2】______
spectroscopy. Light from a laser pointing at the region of interest 【S3】______
is absorbed by molecules and some of it are re-emitted back 【S4】______
towards the source where it can be 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 【S5】______
the surrounding gas because of collisions among the molecules.
The single, sharp frequency from the laser is thus smeared out in
to a whole spectrum of frequency whose shape can be used to 【S6】______
determine the temperature provided so that the molecular
transitions and line shapes are known. Because it ’is the main 【S7】______
component of the air, it is convenient to use nitrogen since its
molecular properties are known from room temperature to 【S8】______
temperature of about 1,200 degree Celsius from experimental
measurements. Although this is a large range, it is far short of 【S9】______
what it is needed for some applications. 【S10】______ [br] 【S5】
选项
答案
also∧→on
解析
加入on,与前面形成并列关系,而且作者意图着重强调后面的 temperature等,所以不可省略。
转载请注明原文地址:https://tihaiku.com/zcyy/3009100.html
相关试题推荐
【B1】[br]【B10】[originaltext]Inabout45years,temperaturesonEarthwillb
【B1】[br]【B7】[originaltext]Inabout45years,temperaturesonEarthwillbe
【B1】[br]【B6】[originaltext]Inabout45years,temperaturesonEarthwillbe
【B1】[br]【B5】[originaltext]Inabout45years,temperaturesonEarthwillbe
【B1】[br]【B4】[originaltext]Inabout45years,temperaturesonEarthwillbe
【B1】[br]【B3】[originaltext]Inabout45years,temperaturesonEarthwillbe
Inabout45years,temperaturesonEarthwillbehotterthanatanytimedurin
Theethicalbehaviorrefersto______.[br]Accordingtothemeasurestoimprove
Inthepast,theglobalaveragetemperaturemayhavebeen27℃.[br]Therelease
Inthepast,theglobalaveragetemperaturemayhavebeen27℃.[br]Itmaytake
随机试题
Newresearchshowsgirlswhoregularlyhavefamilymealsaremuchless【S1】__
A.心肌炎 B.心内膜炎 C.心外膜炎 D.心包炎类风湿关节炎患者心脏受累
中断向量提供()。A.被选中设备的地址 B.待传送数据的起始地址 C.中断
男性,32岁,反复上腹痛2年余,向背部放射,夜间加重,曾2次大出血,经抢救治愈,
R5级的基金产品下列那一类型的投资者可以购买( )A.C1 B.C2 C.
第一类危险源控制方法一般包括( )。A、消除危险源 B、增加安全系数 C、
下列各项,属缓慢性心律失常的是A.逸搏与逸搏心律 B.过早搏动 C.并行心律
患者女性,28岁,有风湿性心脏病史,心律不齐4年,每天服用地高辛1片治疗,近来自
俗话说:“知子莫过父,知女莫过母。”这句话体现了家庭教育中()A.教育者对受教育
认知方式有好坏之分,它影响学习的速度、巩固程度和学习的迁移。()
最新回复
(
0
)