elliptical
adjective
: shaped like a flattened circle
: using few words and therefore hard to understand
Examples
The moon follows an elliptical path around the Earth.
a writer with an elliptical style
hitherto
until now : before this time
Examples
at the talent show Kyle revealed his hitherto unknown gift for doing impressions
postulate
V. to suggest (something, such as an idea or theory) especially in order to start a discussion
N. a statement that is accepted as being true and that is used as the basis of a theory, argument
Examples
Einstein's theory of relativity was deduced from two postulates
equivalence
N. the quality or state of being alike : the quality or state of having the same value, function, meaning, etc
Examples
the equivalence of the two propositions
equation
mathematics : a statement that two expressions are equal (such as 8 + 3 = 11 or 2x – 3 = 7)
Examples
the equation of material wealth with happiness
intrinsic
adjective
: belonging to the essential nature of a thing : occurring as a natural part of something
revolutionize
verb
: to change (something) very much or completely : to cause a revolution in (something)
Examples
The invention of the airplane revolutionized travel.
velocity
noun
: quickness of motion
Examples
particles moving at high velocities
measuring the velocity of sound
the velocity of a bullet
correspond
verb
: to be similar or equal tosomething
: to have a direct relationship toor withsomething
: to write to someone or to each other
specify
transitive verb
: to name or mention (someone or something) exactly and clearly : to be specific about (something)
arbitrary
adjective
: not planned or chosen for a particular reason : not based on reason or evidence
: done without concern for what is fair or right
vertical
adjective
: positioned up and down rather than from side to side : going straight up
: having a structure in which there are top, middle, and bottom levels
proportional
adjective
: having a size, number, or amount that is directly related to or appropriate for something
: having parts that are the correct or appropriate size in relation to each other
explicit
adjective
: very clear and complete : leaving no doubt about the meaning
: showing or referring very openly to nudity, violence, or sexual activity
: openly shown
spatial
太空的
gravitational attractiom
重力引力
motion of bodies
物体运动
accord with
与...一致，相符
rotation
noun
: the act or process of moving or turning around a central point
: a complete turn around a central point
: the act of regularly changing something by replacing it with something else
eg：the rotation of the earth
