... two-dimensional gel electrophoresis 双向凝胶电泳 two-dimensional spectrum 二维谱 two-factor interaction 二因子交互效应 ...
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...主要用途： 1、常规一维谱（1H，13C，31P，19F等）和常规二维谱（COSY，NOESY，HMQC，HMBC，TOCSY等）的测试。 2、微量样品的 测定及混合物定量分析等。
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核磁共振二维谱 two-dimensional nmr
二维摄谱 bidimensional spectrography
二维谱矩 D power spectrum moment
二维谱熵 two-dimension spectrum entropy
二维谱分布 D wave spectrum
二维谱估计 D spectrum estimation
全二维色谱 Comprehensive two-dimensional gas chromatography ; Comprehensive Two-Dimensional Gas Chromatography Coupled
全二维气相色谱 comprehensive two-dimensional gas chromatography ; Comprehensive GCXGC system ; GCGC
二维荧光光谱 [光] two-dimensional fluorescence spectrum ; two-Dimensional fluorescent spectroscopy
试验中，提取驱动桥振动信号频谱的二维谱熵作为特征指标，输入到SVDD分类器。
In the test on driving axle, the 2d spectrum entropy of vibration signals is extracted as the feature indicator and is input into the SVDD classifier.
分别计算了井外有两层、三层介质时井内声波传播的二维谱，绘制了时差随频率的变化曲线。
After the simulation of the well surrounded by two and three stratums, the two-dimensional spectrum is calculated while the curve of wave slowness changes with the frequency is drawn.
当模型井的径向厚度较大时，二维谱中纵波速度线附近的模式波类型较多，空间分布较密集，幅度也较大；
There are a lot of mode wave patterns near P-wave velocity line in 2-D spectrum, which have dense special distribution and large amplitude when the radial thickness of model well is thicker ;
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