Working table with stable in-and-out, non-librations, speed can be adjusted unlimited.
工作台进出平稳、无振动，进出速度无级调节。
2
Forging and pressing equipment work in a poor circumstance. Locating in big librations, high temperature and much dust circumstance.
锻压设备的工作环境一般都很恶劣，长期的处于振动大、温度高、灰尘多的工作环境中。
3
Based on the model of soundboard parameter finite term for violin, the article analyzed the radian parameter of both faceplate and soleplate of violin resonator influence upon the librations features.