Under pool model, this thesis establishes mathematic model which aim at minimize the power purchasefee.
针对电力联营体模式，本论文以购电费用最小为目标，建立阻塞管理的数学模型。
2
For each purchase, the bank charges the merchant a commission (discount fee) for this service and there may be a certain delay before the agreed payment is received by the merchant.
对于每笔购买交易，银行都会为此向商户收取手续费(折扣费)，在商户收到同意付款前，可能会有一定延迟。
3
You can get a free download of the IBM Cloudscape code as well, and you can purchase support for it from IBM, but we do not intend to charge a license fee for Cloudscape.
您也可以免费下载 IBM Cloudscape 代码，并且可以从 IBM 那里购买对它的支持，但我们并不打算收取 Cloudscape 的许可费。