constant
名词 constant:
a quantity that does not vary
同义词:constant quantity, invariable
a number representing a quantity assumed to have a fixed value in a specified mathematical context
形容词 constant:
persistent in occurrence and unvarying in nature
同义词:changeless, invariant, unvarying
continually recurring or continuing without interruption
同义词:continuant
steadfast in purpose or devotion or affection
uninterrupted in time and indefinitely long continuing
同义词:ceaseless, incessant, never-ending, perpetual, unceasing, unremitting