For example, an Invoice class may have a grandTotal attribute that is used by its instances for calculation purposes, but that is not saved to the database.

例如，Invoice类会有grandtotal属性，这个属性由其实例在计算时使用，但它不保存到数据库中。

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This price is not yet complete, however, because the total invoice depends on where the products are produced and the amount of the shipping cost.

然而，由于全部的货品计价取决于产品是在哪里生产的及其运送的费用，所以这一价格并没有计算完全。

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E. In documents other than the commercial invoice, the description of the goods, services or performance, if stated, may be in general terms not conflicting with their description in the credit.

单据中内容的描述不必与信用证、信用证对该项单据的描述以及国际标准银行实务完全一致，但不得与该项单据中的内容、其它规定的单据或信用证相冲突。

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Now I am told that Austria does not even send an invoice because, I believe, it would cost more in postage!

UN: Secretary-General

Feeling slightly agitated myself, I point out the invoice is really not even past due yet.

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With the 60-day grace period kicking in from the end of the month in which the invoice is received, HMV would not have had to pay the bill until springtime.

BBC: Music labels reeling at HMV woes