Operating cost per unit.

操作的单位成本。

Online transactions lower our operating cost.

在线交易降低了运营成本。

Currently operating cost income ratio is about 60%.

目前的经营成本与收入比率约为60%。

And operating cost to meet this requirement and returned.

而作业成本法正是适应这种要求而产生的。

The only solution is to reduce ships' high operating cost.

唯一的解决方法是减少船只的高运营成本。