查询词典 PEC
- 与 PEC 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Time-Frequency analysis method is applied to the analysis of PEC signals with the aim of discriminating the occurrence of corrosion from the simultaneous variations of lift-off, smoothed pseudo Wigner-Ville distribution is used to get the signal spectrum map. The method of extracting the lowest energy area as the classification eigenvalue is proposed, and a good classification result is acquired.
采用时频分析的方法对同时出现腐蚀缺陷和提离变化的情况进行了识别，利用平滑的伪Wigner-Ville分布得到了信号的谱图，提出了提取谱图中最低能量区域面积作为特征量进行识别的方法，取得了较好的识别效果。
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The contents of TOC, DOC, POC and PEC are generally higher in the samples of wet-season than that in the dry season.
干季降雨的平均TOC含量为5.65 mg/l，平均DOC含量为3.26 mg/l，平均POC含量为2.48 mg/l，平均。
- 推荐网络例句
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I'm not an actor. I'm a professor of paleontology.
我不是演员，我是古生物学教授
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Spider Network Web site that is a very image of the name.
网络蜘蛛即Web Spider，是一个非常形象的名字。
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The rain drumming on the corrugated iron roof kept me awake last night.
雨点敲击着房顶的波纹铁使我昨夜未眠。