These two airfoils lie on different Riemann sheets in the hodograph plane.
该两个翼型处在不同的黎曼面内。
Pretreatment process for PVC laminating on different thin metal sheets was introduced. Formula, strengths and maintenance of degreasing and phosphating process were emphasized.
提出了一种适用于各种金属板贴塑的前处理工艺，着重介绍了脱脂和磷化的工艺配方、特点及槽液的维护。
One headache could come from the way different assets are valued on bank balance sheets.
一个头痛的问题可能来自银行资产负债表中对不同资产进行估值的方式。
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