LWT的音标

In terms of acoustic parameters, with the CNTs content increasing, the density, elastic ratio and loss factor of composite diaphragm were climbing up. When the CNTs content reached to lwt%, however, the upward tendency leveled off.

振膜声学参数方面，随着碳纳米管含量的增加，复合振膜的密度、动态弹性模量、比弹性率以及损耗因子均上升，但是当碳纳米管浓度达到1wt%之后，上升的趋势趋于平缓。

The water-gas shift experiments showed that the pure CeO2 nanofibers had no catalytic conversion and the lwt% Pt doped CeO2 nanofibers had better catalytic effect which indicated that the Pt dispersed well in the nanofibers with high activity.

水煤气转化实验表明纯CeO2纳米纤维没有催化转化效果，负载1wt%Pt的CeO2纳米结构纤维具有较好的催化转化效果，说明了Pt在Pt/CeO2纳米纤维中均匀分散并具有较高的活性。

A new texture feature extraction method using Local Walsh Transform ( LWT) is presented. The definition of LWT is given. The statistical properties of LWT coefficients are analyzed.

介绍了一种利用局部沃尔什变换（LWT）提取图像纹理特征的新方法，给出LWT的定义，并分析了LWT系数的统计特性及其各阶矩的纹理鉴别性能。