| 1. | Acoustics ; spectra and frequency curves , concepts , representation
声学.声谱和频谱曲线.概念表示法 |
| 2. | Intensity - frequency curve examination
频率曲线检查 |
| 3. | Speed cumulative frequency curve
速率累加次数曲线 |
| 4. | Cumulative frequency curve
累积频数曲线 |
| 5. | Phase frequency curve
相频曲线 |
| 6. | Based on the observed runoff data , more accurate designed flow to a culvert or a small bridge may be obtained by curve fitting on frequency curve of pearson type iii distribution
精度较高的桥涵水文设计是基于所在地实测的径流资料，采用频率曲线的适线法获得。 |
| 7. | The frequency curve of transverse distribution of the wheel track on divided ways reveals that the frazzled damage of highly channelizing expressway cement concrete pavement largely occurs in the peak range of distribution curve of the wheel track
摘要分车道行驶轮迹横向分布频率曲线显示，渠化程度较高的高速公路水泥混凝土路面磨损破坏主要集中在行车道轮迹峰值范围。 |
| 8. | The structure of the testing platform is described , and the experiment content and principles are given in detail . the transmission error curves and space frequency curves are emulated . the circuits of rotor part and software are finished
本文介绍了实验台的整体结构，实验内容的设置和各实验的工作原理，模拟了传动误差曲线及其空域频谱图，详细阐述了转子测量的电路设计、下位机程序设计和上位机的软件设计。 |
| 9. | The prestress and harmonic response analysis method is used to study the unbalance response of a turbo - generator rotor and the displacement - frequency curve at a point of the rotor as well as the sress and strain at an appointed frequency are provided
摘要利用预应力及谐响应分析的方法研究了转子的不平衡响应，得出在某频率范围内，转子在指定点处位移对频率的响应曲线以及在指定频率处，整个转子上的应力、应变响应的影响等。 |
