Facial feedback theory testing was the main question of this study.

人脸反馈理论测试是本研究的主要问题。

youdao

A digitized harmonic detection method based on resampling and feedback theory is proposed.

提出了基于重采样和反馈理论的数字化谐波检测方法。

youdao

Based on the model and in conjunction with nonlinear feedback theory, a fuzzy-PID ramp controller is then designed.

基于该模型，并结合非线性反馈理论，一个模糊的控制器，控制器，然后设计。

youdao

All teachers need professional development throughout their careers, with continuous feedback between theory, practice, and research.

UNESCO: OFFICE IN KATHMANDU

These findings would not have surprised Charles Darwin, who in addition to theorizing on evolution in The Origin of the Species, also developed the Facial Feedback Response Theory, which suggests that the act of smiling actually makes us feel better (rather than smiling being merely a result of feeling good).

FORBES: The Untapped Power Of Smiling