Question

求译：请高手们帮忙翻译以下资料，若能解答，将追加分数。拒绝机译！ 在线等，谢谢！

The validity of invoices submitted for parts or services not supported by a purchase order number will be challenged and payment held, until proof that the purchase was authorised in accordance with our purchasing policy is established.

Answer 1

如果所提交的关于零部件或服务的发票与采购订单号不符，那么此类发票的有效性会遭到质疑，同时停止支付此类发票对应的款项，直到得到相关证据，证明此类采购是按照我们公司的采购政策而得到授权的采购行为。

Answer 2

如果为零件或者服务而签发的发票与订单号不匹配,那么这个发票的有效性会受到质疑并且会被阻止支付,直到有证据证明这笔订单是与我们的购买政策相匹配.
大概就是这个意思吧.....仅供参考...