The simplified prepressing-contact spring-damping system was studied in this dissertation. The nonlinear dynamic characteristic of this system was research by experiment method.
本文以简化的预紧接触式弹簧阻尼系统为研究对象，着重于用试验方法来研究系统在动态载荷作用下的非线性动力学特性。
The principle of the five axis tube-shape measuring machine system in contact type is analyzed. Point out the hardware and software of this system as well as the procedure to compensate spring-back.
分析了接触式五坐标管形测量机的工作原理，提出了其测量系统的硬件和软件的一种实现方法，探讨了实现管材弯曲回弹补偿的方法。
Gongleting spring emerges at the contact place between the dolomite of wumishan formation, jin system and the stratum of quaternary system and is an overflow spring.
公乐亭泉出露于蓟县系雾迷山组白云岩地层与第四地层接触部位，为溢出泉。
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