100的个英语单词意思及例句

conduction 1. 【物】传导 2. 输送
insulator  1. 从事绝缘(隔离)工作的人2.【电】绝缘体
connection
1. 连接;联络;衔接[C][U][(+with/between)]
The connection of our telephone took several hours.
我们用了好几个小时才接通了电话。
2. 关系,关联[C][U][(+with/between)]
Trade connections existed between the two countries before the war.
战前两国之间有过贸易往来。
3. 接驳转运的火车(或船,飞机等)[C]
The train was late and I missed my connection.
火车晚点了,我未能转上车。
4. 亲属,姻亲;社会关系[C][P1]
He is a distant connection of my wife's.
他是我妻子的一个远亲。
5. (业务上的)客户;(可资利用的)熟人[C][P1]
She's just a business connection.
她只是我的一个客户。
6. 亲属关系;业务往来[C][U]
The company has connections with a number of Japanese firms.
这家公司与几家日本商号有业务往来

vacuum
1. 真空[C]
We could not pull apart two plates which enclosed a vacuum.
如果两个盘子间是真空,我们就无法将它们分开。
2. (心灵的)空白,空虚[S]
Her husband's death left a vacuum in her life.
她丈夫的死使她的生活变得空虚。
3. 真空吸尘器;真空装置[C]
The porter turned off the vacuum.
清洁工关掉真空吸尘器。
4. (跟外界隔绝的)孤立状态[C]
Some people are living in a vacuum.
有些人过着与世隔绝的生活。
vt.
1. 【口】用真空吸尘器清扫[(+out)]
I vacuumed my room yesterday.
昨天我用吸尘器清扫了房间。
radiation
1. 发光;发热;辐射[U]
2. 辐射能;放射线,放射物[C][U]
This apparatus produces harmful radiations.
这个装置产生有害的放射物。
3. 发射;传播[U]
4. 【生】辐射形进化[U]
wavelength
1. 【物】波长[C]
2. 【广播】波段[C]
What wavelength is this station on?
这个电台在哪个波段?
I can't get this radio station any more. Maybe its wavelength is jammed.
我再也找不到这个电台了。可能这个波段被干扰了。
amplitude
1. 广大,广阔
2. 充足,丰富
3. 【物】振幅
4. 【军】射程
frequency
1. 频繁,屡次[U]
Accidents are happening with increasing frequency.
事故正在愈加频繁地发生。
2. 频率,次数[C]
the frequency of death
死亡频率
3. 【物】频率;周率[C][U]
This radio station broadcasts on three different frequencies.
这
家电台以三种不同的频率广播。
reflection
1. 反射;回响;反射光,回声[U]
the reflection of a sound wave
声波的反射
2. 映象,倒影[C]
The deer gazed at its reflection in the forest pool.
鹿凝视着它倒映在森林水池里的影子。
3. 反映;表达,抒发[C]
4. 容貌酷似的人;惟妙惟肖的事物[C]
The girl is a reflection of her mother.
那女孩长得和她母亲一模一样。
5. 深思,熟虑;反省[U][(+on/upon)]
After long reflection we decided to buy the house.
经过很长一段时间的慎重考虑,我们决定买下那所房子。
6. 想法,意见[C][(+on/upon)][+that]
7. 非议;(对名誉、品格)有损的事[C][(+on/upon)]
Children's bad behavior is often a reflection on their parents.
小孩的坏品行常常有损父母的名誉。
Your accusation of my lying is a reflection on my reputation.
你说我撒谎,这有损我的名誉。
rellaction 没这个词
spectrum
1. 【物】谱;光谱
They could look at the spectra of the light the moons reflected.
他们可以观察月亮反射的光的光谱。
2. 【电信】频谱;射频频谱
3. 【电】电磁波谱
4. 系列;范围;幅度[(+of)]
There is a wide spectrum of opinions on this question.
在这个问题上有着各种不同的意见。
5. 【心】余象
prism
1. 【数】棱柱(体),角柱(体)
a triangular prism
一个三棱柱
2. 【晶】棱柱
3. 【物】棱镜
4. 折光物体