首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
We’ve all used thermometers to measure temperature but sometimes we need to measure temperature in places you can’t put
We’ve all used thermometers to measure temperature but sometimes we need to measure temperature in places you can’t put
admin
2010-05-09
24
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】______
【S8】
选项
答案
since→and
解析
根据上下文,it is convenient to...与前分句构成因果关系,与后句应该是并列关系。
转载请注明原文地址:https://kaotiyun.com/show/ylOK777K
0
大学英语六级
相关试题推荐
Attheverybeginning,SamWaltonbelievedthathewouldearnmuchmoneyevenifhesoldproductsatlowerpricesthanhisoppon
Theword"rippleeffect"(Para.1)mostlikelymeans"______".Accordingtothepassage,somechangeshavebeencriticizedthe
Peoplecouldeatmorecocoa-richproductssuchasdarkchocolatebutnotdrinkteaiftheywanttolowertheirbloodpressure,G
Peoplecouldeatmorecocoa-richproductssuchasdarkchocolatebutnotdrinkteaiftheywanttolowertheirbloodpressure,G
Peoplecouldeatmorecocoa-richproductssuchasdarkchocolatebutnotdrinkteaiftheywanttolowertheirbloodpressure,G
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
A、Helpherpreparethepresentation.B、Giveherextratimetofinishthereport.C、Givehersomeadviceondoingthereport.D、H
Insomeplacesleaveswillfalloffthetreesbeforetheychangecolorsintheautumn.Theprocessthattheveinsgraduallyclo
Insomeplacesleaveswillfalloffthetreesbeforetheychangecolorsintheautumn.TheexamplethatSourwoodchangescolors
A、Turnitin’santi-plagiarismsoftwarecanbewell-acceptedbyHarvardUniversityB、theanti-plagiarismsoftwaremaycreatesome
随机试题
从原点向圆x2+y2-12y+27=0作两条切线,则该圆夹在两条切线间的劣弧长为()。
男性,72岁。脑梗死病史半年,出现饮水进食呛咳半年。入院前5天起咳嗽,痰呈脓性。体温39℃,稽留热型。X线胸部摄片示左中肺野大片浸润阴影,并见空洞和液平面。曾应用青霉素、头孢呋辛、头孢他啶、阿米卡星、美罗培南等,病情不见好转。痰培养多次为金黄色葡萄球菌。
中药炮制学的定义
护士指导开胸术后患者进行有效的深呼吸,下列哪项做法是正确的
拟订施工的正常作业条件包括()。
当收益率曲线有正的斜率、并且预计收益率曲线不变时,短期债券的收益率比长期债券的收益率高。()
个人信用贷款额度最高不超过()。
一般用于成员国弥补暂时性国际收支不平衡、经济开发和基础设施建设的信用是()。
下列关于刑法时效制度的内容,我国刑法没有规定的是()
判断char型变量c1是否为大写字母的正确表达式是
最新回复
(
0
)