常常要把价格范围设定在复杂度最高的最佳解决方案和不是太精细，但价格更实惠的解决方案之间。
Often, a price range needs to be set between the best, most sophisticated solution and a less elaborate, but more affordable one.
咨询公司负责帮客户设计盈利的拍卖方案，或者以更实惠的价格赢得拍卖。
Consulting firms are popping up to help clients design profitable auctions or win them less expensively.
更适用与航空、邮政、保险等价格实惠，安全系数高。
More applicable to aviation, postal services, insurance price benefits, high safety factor.
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