工学 井下工具 释 shock absorber 减振器 吸收钻井中产生的冲击和振动负荷，保护钻头牙齿、轴承和钻具，提高钻头及其他钻具寿命的工具。
计算机硬件 计算机工程设计 释文 shock absorber 减震器
- fluvial process
- fluvial processes
- fluvial system
- fluvial terrace
- fluvioglacial deposit
- fluviograph
- Fluvo-aquic soils
- flux
- flux adiabatic invariant
- flux analysis
- flux autocorrelation function
- flux balance analysis
- flux bundle
- flux-calcined
- flux collector
- flux compactification
- flux concentration ratio
- flux conjecture
- flux control coefficient
- flux control coefficients，FCCs
- flux control coefficient was determined by inhibitor titration
- flux-cored wire arc welding
- flux-corrected transport method
- flux creep
- flux deficit