In the past half century, the main problem of China economy is unsteadiness.

在过去的半个多世纪里，中国经济多次出现大起大落。

The electrocardiac signals exhibit obvious unsteadiness and contain many noises in the processing of detecting.

人体心电信号随着检测状态及时间的变化具有明显的非平稳性及包含许多干扰的特点。

A fuzzy sub-stroke extraction method is proposed to resolve the unsteadiness because of the unconstrained written fashion.

论文提出一种模糊子笔画抽取方法，解决了因无限制手写体笔画随意性而使得抽取的子笔画不稳定的问题。

This mp3 player supports normal SD memory card and moblile U disk except some which is unsteadiness and too slow-speed ones .

播放器支持绝大多数的SD卡和U盘，极少数SD卡U盘本身不稳定或速度太慢的不支持。

The results indicate that the flow unsteadiness bring out extra losses, and time lag phenomena are evident in many circumstances.

结果表明流动非定常性产生额外损失，滞回现象存在于叶轮机中。