Airports earn just 18 % of their revenues from airlines , according to aci .
根据aci的说法，机场从航空公司的总收入中只赚取到18%。
The american cleaning institute ( aci ) says that just because the chemicals are found to be present in the products tested , this doesn 't mean that their presence is actually harmful to people .
Some 35 % of consumers use a mobile phone for making payments , and 45 % use one for banking , according to a recent survey of 14 countries by aci worldwide , a payment systems company , and aite group , a research firm .
