曲率
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数(shù )学(xué )上(shàng )指(zhǐ )表(biǎo )明(míng )曲(qǔ )线(xiàn )在(zài )其(qí )上(shàng )某(mǒu )一(yī )点(diǎn )的(de )弯(wān )曲(qǔ )程(chéng )度(dù )的(de )数(shù )值(zhí )。
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