(noun.) the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value.
(noun.) a turning force produced by an object acting at a distance (or a measure of that force).
(noun.) a particular point in time; 'the moment he arrived the party began'.
(noun.) an indefinitely short time; 'wait just a moment'; 'in a mo'; 'it only takes a minute'; 'in just a bit'.
校对:罗伯特
编辑:马克斯