| ประโยคภาษาจีน : 中文句子 | 
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|  jī yì机翼  de的  yùn dòng fāng chéng运动方程  kě yǐ可以  xiě chéng写成  sì wéi四维  yī一  jiē阶  cháng wēi fēn fāng chéng常微分方程  qǔ取  guǎng yì广义  qì liú气流  sù dù速度  huó和  xiàn xìng线性  fǔ yǎng俯仰  gāng dù刚度  zuò wéi作为  fēn chà分岔  cān shù参数 | 
| The monition equations of airfoil are written as the four dimensional first order differential equations. Taking airspeed and the linear part of pitching stiffness as the bifurcation parameters. |