| 1. | It means that there is no first-order correction to the frequency of waves .
这就意味着，不存在对波的频率的一阶改正项。 |
| 2. | In other coordinates it will involve second and possibly first derivatives with respect to time .
在别的坐标系中，它除了包含对时间的二阶微商外，还可能会包含对时间的一阶微商。 |
| 3. | A class of the first order nonlinear hyperbolic equation
一类非线性一阶双曲方程 |
| 4. | The transient state analysis based on first - order circuit
浅谈一阶电路的暂态分析 |
| 5. | Oscillation of first order delay differential equations
一阶时滞微分方程的振动性 |
| 6. | A class of cubic systems with one order ' s fine focus
一类具有一阶细焦点的三次系统 |
| 7. | For determining first order system parameters
确定一阶系统参数绘图技术 |
| 8. | The ideal constraint force of 1 - order nonholonomic constraint
一阶非完整约束的理想约束力 |
| 9. | Oscillation of first order neutral differential equations
某类一阶中立型微分方程的振动性 |
| 10. | The analysis of first order linear circuit about ac transient state
一阶交流电路暂态分析 |
