operation costs短语¹⁴⁴⁹⁷²⁺² 基本例句 运营成本 The basic goal to resolve queue problem is the appropriate tradeoff between the customer's waitingor time cost and the banks' increasing operation costs caused by enlarging the service capital. 解决排队问题的基本目标是权衡客户等待成本与银行增加资源引起的成本之间的得失。 cnki