Objective: To verify water quality from multiple-effect distilled water machine.
目的：验证多效蒸馏水机的制水质量。
2
Multiple-effect evaporation can be classified as a variable hot and cold sink system. The minimum utility of this kind of system must bet he case where multiple pinch points occur.
多效蒸发系统属于可变冷、热源系统，此类系统在出现多狭点时达到最小外界供热和取热。
3
Hence, the leveraged, or "multiple," effect of changes in bank reserves, and of the Fed's purchases or sales of assets which determine those reserves.