21. Calls cost 0.7 DM per time unit . 22. However, demobilization began immediately and most of the British war time units had left by May 1919. 23. The algorithm is operating in phases, each phase has n rounds, each round is one time unit . 24. These posts are pooled and members drawn from them as needed to augment full-time units and ships'companies. 25. During the inter-war years, the regiment was re-raised as a part-time unit based in New South Wales. 26. Is the discrete-time unit impulse function ( cf Dirac delta function which is a continuous-time version ). 27. Electronic video cameras do not have mechanical shutters and allow setting shutter speed directly in time units . 28. Monte Carlo simulations are also less susceptible to sampling errors, since binomial techniques use discrete time units . 29. A part-time unit of the 21st, both of which were based in the state of New South Wales. 30. Instead of churning out what cynics call BTUs ( butt-time units ), they aim to satisfy their customers.