Set your smart phone to the vibration mode in office.

Vibration of the vocal is the criterion that distinguishes vowels from consonants.

For a MDOF system, which one is needed to calculate its vibration frequencies? A: the mass matrix [M] B: the damping matrix [C] C: the stiffness matrix [K] D: the vibration modes

中国大学MOOC: Vibration of the vocal cords results in a quality of speech sounds called voicing.

‏VR的全称是（ ）​ A: Virtual Reality B: Virtual Rock C: Volume Ratio D: Vibration Reduction

That baseball ______ is hired to coach the adolescent players on a<br/>baseball team. A: spice B: eyesore C: veteran D: vibration

NVH由（）构成？ A: Noise（噪声） B: Vibration（振动） C: Harshness（声振粗糙度） D: 音乐

/s/ and/θ/ can be distinguished by_____. A: manner of articulation B: place of articulation C: vibration of the vocal cords D: aspiration of articulation

The vibration frequency perceived by the human ear is A: 20 ~ 10000Hz B: 20 ~ 20000Hz C: 20 ~ 30000Hz D: 20 ~ 2000Hz

The radial thrust force Fp , which consumes no power, is the main reason that causes the machine tool vibration and affects the machining accuracy.