| 1. | Experimental study on frequency spectrum characteristics of blast vibration wave
爆破振动频谱特性实验研究 |
| 2. | Study on the frequency spectral character of edge wavein a bur ied long cylinder
埋藏圆截面杆中边缘波的频谱特性分析 |
| 3. | Spectrum characteristics of turbulent natural convection between two vertical walls
竖直平板间自然对流的湍流频谱特性 |
| 4. | Then the influence of the spectrum property on the non - paraxial property of the pulsed beam is discussed
并对脉冲频谱特性对其非傍轴特性的影响进行了讨论。 |
| 5. | In addition to , acquiring the frequency - spectrum response of imported earthquake - wave can be better to analyze the earthquake response of the structure
此外求出输入地震波的频谱特性，可更好的分析结构的地震反应。 |
| 6. | Firstly , the spectrum properties of fsk signal are introduced and the principle of spectrum estimation for fsk signal detection is discussed in detail
首先介绍了fsk信号的频谱特性，详细分析了fsk信号谱估计检测理论。 |
| 7. | Therefore , the structure and feature of different foundation soil strata can be distinguished for different kinds of frequency response of site
而这些频率又是与由地层内的波的重复反射产生的地基固有周期相对应。地脉动的频谱特性能够反映出场地土的构成和特性。 |
| 8. | At first , this paper described the basic structure , working principle , sources of spurious signals and characteristics of output spectrum , of direct digital frequency synthesizer ( dds )
首先分析直接数字频率合成器( dds )的基本结构、工作原理、杂散来源、输出频谱特性。 |
| 9. | By analyzing the spectrum feature and correlation feature of walsh sequence , we find that it has the spectrum feature of ds / fh ( direct spread / frequency hopping ) communication mode
我们分析了walsh函数序列的频谱特性和相关特性，结果表明，该序列具有ds fh (直扩跳频)的频谱特性。 |
| 10. | This article mainly concern the sound material in the engine compartment of a passenger car , and obtain that the old material which can not satisfy the need have to be replaced
摘要通过测量分析发动机舱内噪声频谱特性，对某型客车发动机舱的原用吸声材料进行测量，并得出了原有材料选用不适当的结论。 |
