The email says that this deal at least will give Facebook users a freeitem when they Facebook Places tag three of their friends as present at the retailer's location.
When considering body-force, freeitem will be arised in the equation of the boundary element method, causing boundary integration to be changed into nonlinear-integration.
边界元法在考虑体积力时要产生积分自由项,这将使边界积分成为非线性积分,从而引起实施时的困难。
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I declared the era of free music to be upon us and the album as a saleable item dead.