There was a residual amount of paint left in the can.

罐子里还残留着一些油漆。

Clothing to reduce the residual amount of PCE to effectively protect the environment.

减少衣物四氯乙烯的残留量，有效保护环境。

When the new itinerary results in a lower fare, a refund of the residual amount will be made.

当新的价格比原来的价格低，英航将会退还其中的差价。

Object To study the degree of deacetylation of chitosan and its residual amount left over in the clarified products when chitosan was used as a clarificant .

目的对壳聚糖澄清剂的脱乙酰度及精制后的中药水提液中壳聚糖的残留量进行了探讨。