Lippl also notes that because their consumption was being monitored, they may have been more self-conscious about what they ate.
利普也承认，由于有人在测量他们的饮食情况，所以他们可能有意识地在控制。
2
There are many monitored parameters in the node of distributed electric power monitor system, it is difficult to form a self-contained monitor node using a few existent meters.