Optimum design of collector head spring system of pantograph 机车受电弓弓头弹簧系统的优化设计
Drive spring system 传动装置弹簧装置
Mass - spring system 质量弹簧系统
The spring system can be tuned instantly to adapt to body weight , skill level and terrain 新上市的高跷棍加入一个弹跳装置,似医生用的注射器。
Elements of electrical and optical connection - test methods - holding force of grounding spring system 电气和光学连接元件.试验方法.接地簧组件的夹持力
On the construct design of a fixed - fixed undamped mass - spring system under the sum of mass of system restriction 固定型无阻尼弹簧质点系统的质量约束问题
Easy pull - down system locks and heavy - duty spring system at intervals to fit a variety of projection formats 拉下系统锁及重型弹簧系统适合不同投影形式
Aerospace series . elements of electrical and optical connection . test methods . part 413 : holding force or grounding spring system 航空航天系列.电气及光学连接元件.试验方法413部分:保持力和接地弹簧系统
The flybar ( tm ) 1200 can propel you over 6 feet in the air with a innovative , patented , fully - adjustable elastomeric spring system 产品说明:可调节的橡胶弹簧,高强度的铝合金材质包括超宽的脚蹬有助于安全保护。
Aerospace series - elements of electrical and optical connection ; test methods - part 413 : holding force of grounding spring system ; german version en 2591 - 413 : 1998 航空航天系列.电气和光学仪器连接元件.试验方法.第41