阶导数

• Determination of micro zinc with 1 - 2 - pyridylazo - 2 - naphthol by second - derivative spectrophotometry
  二阶导数分光光度法测定微量锌
• It is another hot point to study the surface elastic free energy of liquid crystal
  这一项的特殊之处在于：它明显包含了指向矢的二阶导数。
• Solvability of singular second - order two - point boundary value problem with first order derivative
  含一阶导数的奇异二阶两点边值问题的可解性
• A neural network 2 - rank derivative predictive fuzzy adaptive control method of ship course
  船舶航向的神经网络二阶导数多步预测模糊自适应控制
• Multiple positive solutions of a semilinear fourth - order boundary value problem with first derivative
  含一阶导数的半线性四阶边值问题的多重正解
• Voltammetric behavior of venoruton and its determination by second derivative convolution voltammtry
  维脑路通的伏安行为及其二阶导数卷积伏安法测定
• Study on method of determination of the content of sesame oil by second derivative ultraviolet spectrophotometry
  用二阶导数紫外分光光度法直接测定芝麻油含量
• Determination of total chlorogenic acid in yinhuangqing oral liquid by second order derivative spectrophotometry
  二阶导数光谱法测定银黄清口服液中总绿原酸含量
• Determination of formaldehyde in the food by single sweep polarography with two orders of differential coefficient
  二阶导数单扫描示波极谱法测定食品中甲醛的含量
• The curvature is the second order derivative of displacement . also , it has a liner relationship with stain
  曲率又是位移的二阶导数，同时曲率又与应变存在着一一对应关系。