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
- retroflex
- retroflex rhyming groups
- retrofocus
- retrogradation
- retrograde
- retrograde aldol condensation
- retrograde amnesia
- retrograde condensate phenomenon
- retrograde degeneration
- retrograde ejaculation
- retrograde grouting
- retrograde merger
- retrograde messenger
- retrograde metamorphism
- retrograde motion
- retrograde motion, retrogression
- retrograde of inversion
- retrograde orbit
- retrograde precession
- retrograde stationary
- retrograde treatment
- retrogression
- retrogressive development
- retrogressive erosion
- retrogressive metamorphosis