| 1. | The function (f')is usually written simply f" and is called the second derivative .
函数（f’）通常简写成f”，并称之为f的二阶导数。 |
| 2. | Abstract : zero - crossing edge detection method was analyzed
文摘:讨论二阶导数过零边缘检测方法。 |
| 3. | A class of stiffly stable k - step second derivative methods of order 2k
1阶刚性稳定的二阶导数方法 |
| 4. | 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 |
| 5. | 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。 |
| 6. | 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 |
| 7. | 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 |
| 8. | 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 |
| 9. | 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 |
| 10. | 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 |
