Because of the small spring easily plug solids, high viscosity medium will move in small delay compensation axial spring.
因为小弹簧容易被固体物堵塞，高粘度介质会使小弹簧轴向补偿移动受阻。
2
The fatigue life and cumulative damage of ammunition feeding spring in automatic naval gun of medium calibre have been analysed.
本文研究了中口径自动舰炮输弹簧的疲劳寿命及损伤规律。
3
A iron sword with bronze handle was unearthed in a tomb of Shanrong culture in Yanqing, the age was about the early phase of medium-term of Spring and Autumn period.