The dart is a "v" shape, with a certain width in the end, the other end is gradually reduced, the shape of "v" by the suture stitch distance is called the province wide or discount amount.

省道是“v”字形的，在其一端有一定宽度，另一端逐渐缩小为点，“v”形被缝合时线迹的距离称为省宽或折量。

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Sometimes companies offer a cash discount (also called a sales discount) to encourage early payment by the customer and sales can be recorded at its gross amount or net of allowed discount amount.

有的时候公司提高现金折扣（也叫做销售折扣）来鼓励客户尽早还款，销售以其总金额或允许的销售折扣的净额记录。

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You discount the tremendous amount of work they've done to get to where they are.

你低估了他们为达到现在的成就所做的大量工作。

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You can also create discount vouchers, either with a set amount of money off, or a percentage discount.

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In its latest incarnation, the interest-rate ceiling on consumer loans is restricted to 5% above the Federal Reserve's discount rate the amount the Fed charges banks for overnight loans.

ECONOMIST: Usury laws: The bad side of town | The

So presumably, if the deal is allowed to proceed, the ECB will ensure that all the risk actually remains with Bankia and the Spanish government - and therefore with Spanish taxpayers - by imposing a massive discount (or haircut) on the amount of cash it would exchange for the bonds.

BBC: No magic potion for eurozone banks