求翻译：因为厂商常常抱怨降价后我们的订单分配不够公平，所以本次降价我们计划采用竞标的方式，现场决定分配比例及有效时间是什么意思？

Because companies often complain that our order after the distribution of prices is not fair, so we plan to adopt this price competitive bidding, on-site decisions and effective time allocation ratio

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Because the manufacturer after complained frequently reduces prices our order form assignment insufficiently to be fair, therefore this time reduces prices we to plan uses the competitive tender the way, scene decision assignment proportion and working life

Because manufacturers often complain that we order allocation after the price cut is not fair enough, this price cut, so we are planning a bid way, decided to assign ratio and a valid time

Because manufacturers often complain that we order allocation after the price cut is not fair enough, this price cut, so we are planning a bid way, decided to assign ratio and a valid time