A calculation method for blade group vibration is presented starting with boundary assumptions to take care of the influence of root flexibility.
本文给出了从边界条件着手考虑叶根柔度影响的汽轮机叶片组的振动计算方法。
Disclosed is a beauty masseur whose battery and miniature motor drive the vibration of a vibratory head, and skin care and beauty cream can be contained in the vibratory head.
一种利用电池和微型电机带动的振动头振动的美容按摩器，振动头内可装有护肤美容膏。
Automatic heat, vibration massage, infrared therapy, magnetic therapy health care, oxygen bubbles.
自动加热，振动按摩，红外理疗，磁疗保健，气泡增氧。
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