1、impulse

an instinctive motive

We were seized by a sudden impulse to run.

2、leaning

an inclination to do something

The Leaning?Tower began to tilt almost as soon as it was built on soft silt soil in 1173.

3、elliptical

rounded like an egg

If the satellite has an elliptical?orbit, the result is a spiral wave, a miniature version of the pinwheel pattern of our galaxy.

4、unambiguously

in an unambiguous manner

The DN is used to refer to the entry unambiguously.

5、ether

the fifth and highest element after air and earth and fire and water

A whiff of ether will put you out in a few seconds.

6、motion

a natural event that involves a change in the position or location of something

The object is no longer in motion.

7、revolutionize

change radically

Computers have revolutionized banking.

8、coordinate

a number that identifies a position relative to an axis

The filter is defined as a box of coordinates.

9、visualize

imagine; conceive of; see in one's mind

Users visualize?the Undo facility in different ways, depending on the situation and their expectations.

10、spatial

pertaining to or involving or having the nature of space

Fluctuations are spatial and temporal in character.

11、specify

make an express demand or provision in an agreement;

Please specify the whole process of the project.

12、source

the place where something begins

My wages are the principal source of my income.

13、sphere

a particular environment or walk of life

It belongs to the ideological sphere.

14、inconsistent

displaying a lack of consistency

His accounts of the event were inconsistent.

15、gravitational

of or relating to or caused by gravitation

It is a spontaneous gravitational instability.

16、mass

a body of matter without definite shape

After harvest we will have a mass of rice.

17、geodesic

(mathematics) the shortest line between two points on a mathematically defined surface

The geodesic dome was associated with the same sort of progressive thinking in design that led to the wind turbine.

18、axis

a straight line through a body or figure that satisfies certain conditions

A wheel revolves round its axis.

19、inward

relating to or existing in the mind or thoughts

directed or moving inward or toward a center

I understand your inward thoughts.

20、deflect

prevent the occurrence of

The bullet hit a wall and was deflected from its course.