首页
登录
职称英语
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
游客
2024-05-10
5
管理
问题
M: Hi, Diana. Mind if I sit down?
W: Not at all, Jack. How have you been?
M: Good. But I’m surprised to see you on the city bus. Your car in the shop?
W: No. I’ve just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.
M: I’m sure you are right. The diesel bus isn’t exactly pollution free.
W: True. But they’ll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.
M: What’s the city gonna do? Install pollution filters of some sort on their buses?
W: They could, but those filters make the engines work harder and really cut down on fuel efficiency. Instead they found a way to make their engines more efficient.
M: How?
W: Well, there is a material called coniine oxide. It’s a really good insulator. And a thick coat of it get sprayed on certain part of the engine.
M: An insulator?
W: Well, yeah. Actually, what it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.
M: So a lot less unburned fuel comes out to pollute the air, right?
W: Yeah, and the bus will need less fuel. So with the savings on fuel oil costs, they say this will all pay for itself in just six months.
M: Sounds like people should all go out and get some of this stuff to spray on their car engines.
W: Well, it’s not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. It’s not something you or I would be able to do ourselves.
选项
A、A fuel that burns cleanly.
B、An oil additive that helps cool engines.
C、A material from which filters are made.
D、An insulating material sprayed on engine parts.
答案
D
解析
What is the coniine oxide?
转载请注明原文地址:https://tihaiku.com/zcyy/3592475.html
相关试题推荐
[originaltext]Thecostisgoingupforjustabouteverything,andcolleget
[originaltext]Thecostisgoingupforjustabouteverything,andcolleget
[originaltext]Thecostisgoingupforjustabouteverything,andcolleget
[originaltext]Tomostofussharksarethemostdangerousfishintheseaa
[originaltext]Tomostofussharksarethemostdangerousfishintheseaa
[originaltext]Tomostofussharksarethemostdangerousfishintheseaa
[originaltext]Therearemanylegalrightstomakesurethatpeoplewillbet
[originaltext]Therearemanylegalrightstomakesurethatpeoplewillbet
[originaltext]W:Hi,ProfessorSmith.Ihearyou’vewrittenabooktitledVisio
[originaltext]W:Hi,ProfessorSmith.Ihearyou’vewrittenabooktitledVisio
随机试题
[originaltext]Inthepastindustrieshadmorefreedomthantheyhavenow,a
Choosingwhattodoinlifeisoneofthehardestdecisionsthatapersonha
[audioFiles]2017m5s/audio_ezfj_187_201705[/audioFiles]SugaryFoodsTher
Britainmaynotalwayscheck【C1】______properly,butitissadlygoodaterec
某隧道跨度为14米,该隧道为()。A.大跨度隧道 B.中等跨度隧道 C
沥青路面道路基层是路面结构中的()。A.稳定层 B.承重层 C.防水层
在了解控制环境时,注册会计师应当关注的内容不包括( )。A、被审计单位治理层相对
研究者发现细菌就像人类的简化版本,它们有自我意识,有自己的语言,群居,既交友也树
被认为是生命科学研究领域中有史以来的第一个“大科学”项目,其意义和影响被誉为不亚
某类房地产2005年~2009年的价格见下表,各年增长量的权重分别为0.1、0.
最新回复
(
0
)