rev是什么意思

双语用例

• The whole disk assembly could be rotated a t speeds up to 2600 rev./min by a variablespeed electric motor.

• This initial calibration confirmed an accurate correlation between fan rev/min and mean-wind speed; consequently this was used t o calibrate the anemometers.

• Note that append (4+) and take are incremental but rev and drop are not.

• The theoretical position of the neutral curve on the end-plate was wmax= 1.50 mm (rev/min)-l.

• The function rev is ordinary list reversal, and is negation.

• The function at denotes list indexing and rev k computes the bit-reversal of a natural number.

• For example, the parameter of rev-flatten is a safe consumer because it is linear and non-accumulating.

• The key to implementing queues (and later deques) using lazy lists will be to write rev and drop as incremental functions.