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- Wavelet packet analysis and Welch method has been advanced todelicately analysis the time-frequency characteristics of arc sound. 通过小波包多层分解与Welch平均法对电弧声信号进行了精细化的时频域分析。 结果表明：电弧声功率谱分布具有一定的规律性，并且不同频段谱峰值及其对应频率与焊接飞溅相关。
- Keywords SVM welding arc sound;LPC model;shield gas flux; 支持向量机;电弧声;LPC模型;保护气体流量;
- Joan of Arc was one of France's greatest daughters. 圣女贞德是法国最伟大的女性之一。
- Don't speak like that. It sounds insincere to me. 别这样讲话，这样我听起来感到不诚恳。
- PARAMETRIC MODELING OF THE ARC SOUND IN GMAW FOR ON-LINE QUALITY MONITORING GMAW电弧声的参数化模型及应用
- The idea sounds good but will it work in practice? 这主意听起来不错，但在实践中行得通吗？
- Joan of Arc was burnt (alive) at the stake. 圣女贞德在火刑柱上被(活活)烧死。
- It seems sounds of drunken revelry. 那似乎是酗酒作乐的吵闹声。
- Joan of Arc was made a saint in 1920. 1920年，贞德被追封为圣女。
- It sounds a pretty loopy idea to me. 那个主意我觉得有点异想天开。
- Sounds of quarrelling proceeded from the house. 争吵声是从房子里传出来的。
- Are you familiar with English sounds yet? 你已经熟悉英语的音调了吗？
- The sun appears to move in an arc across the sky. 太阳看起来在天空以弧线运行。
- A sound mind is inseparable from a sound body. 健全的精神是与健康的身体是不可分割的。
- That sounds very sensible to me. 我觉得这很合理。
- That suggestion sounds practicable. 那条建议听起来可行。
- The episode of this film sounds good. 这部电影的插曲很好听。
- Our teacher has mutation of sounds suddenly. 我们的老师突然语音发生了变化。
- Joan of Arc led a large army to raise the siege of Orleans in1429. 贞德在1429年率大军解除了英军对奥尔良的围攻。
- All sorts of strange sounds met the ear. 听见了各种奇怪的声音。
