准实验研究

According to the technical principles of high frequency balance and based on the quasi-steady assumption condition, this article derives a computing formula of space distribution of wind load on transmission tower, providing an important channel for the study on wind-induced vibration of transmission tower as well as a kind of convenient and reliable development of force measurement range of high frequency balance.

3根据高频天平技术原理及基于准定常假设条件下，推导了输电塔风荷载空间分布的计算公式，为输电塔的风致振动研究提供了一条重要途径，也是对高频天平测力实验局限性的一种可靠方便的扩展。

Nonlinear vibration phenomena including superharmonics, subharmonics, quasi-subharmonics and chaos in metal plates excited by intensive ultrasonic pulses are studied experimentally and theoretically.

对高功率超声脉冲作用下金属板中的超谐波、次谐波、准次谐波以及混沌等非线性振动现象进行了实验和理论研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。