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
- epicycle and deferent
- epicycle energy
- epicycle oscillation
- epicycle theory
- epicyclic
- epicyclic approximation
- epicyclic frequency
- epicyclic motion
- epicyclic orbit
- epicycloid
- epicycloid evolute
- epicycloid involute
- epicycloid pedal curve
- epicycloid radial curve
- Epidaurus Festival
- epidemic
- epidemic cerebrospinal meningitis
- epidemic distribution map
- Epidemic dynamic model
- epidemic encephalitis B
- epidemic focus
- epidemic intensity of disease
- epidemic link of parasitic disease
- epidemic model
- epidemic parotitis