et cetera

Common methods classify animals by their difference in sound pulse rate, wave form structure in time domain and main peak frequency in frequency domain et cetera.

传统的鸣声分类时一般依据不同种动物鸣声信号在时域波形上的波形结构和脉冲率等的不同，功率谱上相对幅度最大所对应的频率即主频的不同来进行分类。

"I like to read books, write articles et cetera."

“我喜欢读书，写文章等等。”

Making round cuneiform steel ring on bit to fish out the smallest bottom ring which is shaking off as a result of welding defect et cetera, and according to practical experiences drafted structural schematic diagram of relevant tools.

在钻头处制作圆楔形钢圈打捞开焊震掉的最小底圈，等等，并根据实践经验，分别绘制了相应工具的结构示意图。

Objective This study was made to observe the topography and ionic diffusion of the elements titanium, silicon, et cetera in the Ti-porcelain interface area which was pretreated with different methods.

目的研究不同表面处理条件下钛瓷界面的形态学特征及钛、硅氧等元素的扩散情况。