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
2024-06-08
11
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] 【S9】
选项
答案
degree→degrees
解析
1200摄氏度的英文是:1,200 degrees Celsius。
转载请注明原文地址:https://tihaiku.com/zcyy/3625370.html
相关试题推荐
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
We’veallusedthermometerstomeasuretemperaturebutsometimesweneedto
[originaltext]Unlessmeasuresaretakenatonce,thereisagoodchancetha
[originaltext]Unlessmeasuresaretakenatonce,thereisagoodchancetha
[originaltext]UnlikeBoas,whohadonlysuggestedlanguageasameasureof
随机试题
Amillionmotoristsleavetheircarsfilledupwithpetrolandwiththekeys
Africanelephantshavebeenslaughteredatalarmingrateoverthepastdeca
当班级规模过大时,成员之间的情感联系就弱,不易建立群体规范,因此,最适宜的班集体
对导游人员的内涵可以从()方面来理解。A.二 B.三 C.四 D.五
小儿符合中度等渗性脱水的是A.失水量占体重的6%,血清钠155mmol/L B
败毒散的组成中不包含的药物是A:柴胡,前胡B:淡竹叶,当归C:羌活,独活D
成果的功能与成本的比值来衡量所得到的价值(价值=功能/成本),目的在于用最低的成
Thechangeinthatvillagewasmiraculou
人脑就是通过这个惊人的微观网络开展它的工作的。每个神经元接收到数千个刺激信号,并
下列不属于期货交易的交易规则的是( )。A.保证金制度、涨跌停板制度 B.持仓
最新回复
(
0
)