ad. at last; lastly 最终;最后

present

vt. give; offer 赠送;提供

tube

n. 管;软管

beam

vi. look or smile happily and cheerfully 面露喜色;高兴地微笑

beard

n. hair of the lower part of the face (excluding the moustache) 胡须

thereafter

ad. after that; afterwards

revert

vi return (to a former state, condition, etc.) 回复,回返

exclusively

ad. only; completely

exclusive

a. person who forms theories 理论家

theorist

n. 方程式

equation

n. small in degree, not considerable or serious 微小的,轻微的

application

n. using 应用

theory

n. (explanation of the) general principles of an art or science 理论

theoretical

a.

reactor

n. 反应堆

atomic

a. of or concerning an atom or atoms 原子的

atom

n.

photoelectric

a. 光电的

series

n. group of things of the same kind that come one after another 系列;套,组

relatively

ad. comparatively 相对地;比较地

relative

a.

relativity

n.

curiosity

n. the desire to know or learn 好奇心

observe

v. see and again

repeatedly

ad. again and again

dunk

vt. put under water for a limited time 把...浸一浸

deduce

vt. reach a conclusion by reasoning 演绎,推断

deduction

n.

principle

n. 原理;原则

flaw

n. fault 缺点,瑕疵

reasoning

n. process of reaching conclusions by using one's reason 推理

pursue

vt. work at, be busy with, go on with 从事;忙于;继续

apart

ad. separate(ly) 分离,分开

approach

n. method of doing sth. 方式,方法

solution

n. sth. that one cannot understand or explain 谜

fame

n. (condition of) being famous

profound

a. needing much thought or study to understand; deep 深奥的;深刻的

capable

a. able

capability

n.

household

n. all the people living in a house

a. familiar and common

household word

n. word or name known and spoken of by almost everyone 家喻户晓的词或名字

civilized

a. 文明的