Aristotelian
adj.（形容词）
Of or relating to Aristotle or to his philosophy.
n.（名词）
1.A follower of Aristotle or his teachings.
2.A person whose thinking and methods tend to be empirical, scientific, or commonsensical.
Lead n.made of lead 铅制的:leaden pipes铅管.
lead-`poisoning n.diseased condition caused by taking lead into the body
in accord with
If one person, action, or fact is in accord with another, they are in agreement and there is no conflict between them. You can also say that two people or things are in accord. (FORMAL)
...this military action, taken in accord with United Nations resolutions
Propagation
Physics The act or process of propagating, especially the process by which a disturbance, such as the motion of electromagnetic or sound waves, is transmitted through a medium such as air or water.
【物理学】传播：通过象空气或水这样的媒介传播传送的行为或过程，尤指电磁波或声波的运动等干扰过程
Infrared
adjective
a type of light that feels warm but cannot be seen:
Their pilots are guided by an infrared optical system that shows images clearly even at night.
n.（名词）
Infrared light or the infrared part of the spectrum./IR
红外线：红外线光或光谱的红外线部分
Ultraviolet
Ultraviolet light or radiation is what causes your skin to become darker in colour after you have been in sunlight. In large amounts ultraviolet light is harmful.
The sun's ultraviolet rays are responsible for both tanning and burning.
Gamma rays
Gamma rays are a type of electromagnetic radiation that has a shorter wavelength and higher energy than X-rays.
Ether
1.Ether is a colourless liquid that burns easily. It is used in industry and in medicine as an anaesthetic.
...a sweetish smell of ether and iodine.
2.Physics An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.
【物理学】以太，能媒：一种在以前被假定为电磁波的传播媒质并具有绝对连续性、高度弹性的极其稀薄的媒体
Hitherto
adverb. until now or until a particular time:
Mira revealed hitherto unsuspected talents on the cricket pitch.
Postulate
If you postulate something, you suggest it as the basis for a theory, argument, or calculation, or assume that it is the basis. (FORMAL)
...arguments postulating differing standards for human rights in different cultures...
Freud postulated that we all have a death instinct as well as a life instinct.
Diagonal line
adjective
1A diagonal line is straight and sloping, not horizontal or vertical, for example joining two opposite corners of a square or other four-sided flat shape:
The book has a diagonal black stripe on the cover.
2moving in a diagonal line:
Peters received a diagonal pass and headed the ball into the net.
Inconsistent
adjective
If a reason, idea, opinion, etc. is inconsistent, different parts of it do not agree, or it does not agree with something else:
These findings are inconsistent with those of previous studies.
Geodesic
n.Mathematics（名词）【数学】
The shortest line between two points on any mathematically defined surface.
最短连线：任何数学定义的表面上的两点间最短连线
Elongate
verb[IorT]
to become or make something become longer, and often thinner:
The cells elongate as they take in water.
Ellipse
An ellipse is an oval shape similar to a circle but longer and flatter.
The Earth orbits in an ellipse
Advent
The advent of an important event, invention, or situation is the fact of it starting or coming into existence. (FORMAL)
...the leap forward in communication made possible by the advent of the mobile phone.
