固有こゆう振動しんどう

koyū shindō

1. Not natural frequency.; Not inherent vibration.

1. Was a natural frequency.; Was a characteristic vibration.

1. With inherent frequency; By inherent vibration

1. Natural frequency; Fundamental frequency

1. It is not a natural frequency.; It is not an inherent vibration.

1. It's not a natural frequency.; It isn't the inherent vibration.

1. Was a natural frequency.; Was an inherent vibration.

1. Natural frequency.

1. Is not a natural frequency.; Is not an inherent vibration.

1. Wasn't a natural frequency.; Wasn't inherent vibration.

1. Probably natural frequency.

1. Was not a natural frequency.; Was not inherent vibration.

1. Wasn't a natural frequency.; Wasn't inherent vibration.

1. Probably the natural frequency.; Likely the inherent vibration.

1. Was not a natural frequency.; Was not an inherent vibration.

1. If/when the natural frequency is…; If/when it's the inherent vibration…

1. If/when the natural frequency; If/when it's a natural frequency

1. If/when natural frequency; If/when inherent vibration