Again, the classic trade-off between memory and speed arises, as compression reduces memory consumption but that compression requires cycles.
同样，这里会出现内存和速度之间的传统折衷，因为压缩减少了内存消耗，但该压缩需要消耗CPU周期。
2
May be cross-trained in a skilled trade and work in the trade during shift cycles.
在轮班周期期间，可能接受某一熟练行业的交叉培训同时在行业内工作。
3
As he laboured in each field-consumer behaviour, public finance, international trade, business cycles-he encountered similar problems, which yielded to the same set of mathematical techniques.