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
- radio emission of star formation region
- radio engineering production competition
- radio ETELS
- radioexamination
- radio feature
- radio feature using natural sound and actuality
- radio flare
- radio flare star
- radio flux
- Radio Free Asia
- radio frequency
- radio-frequency ablation
- radiofrequency ablation of atrial tachycardia
- radio-frequency amplifier
- radio-frequency amplifier, RF amplifier
- radio-frequency band
- radiofrequency catheter ablation by atrial fibrillation
- radiofrequency catheter ablation by ventricular premature beat
- radiofrequency catheter ablation by ventricular tachycardia
- radiofrequency catheter ablation of atrial flutter
- radiofrequency catheter ablation of atrioventricular junctional reentrant tachycardia
- radiofrequency catheter ablation of atrioventricular reentrant tachycardia
- radio frequency cold crucible method
- radio frequency communication
- radio frequency communication, RFcomm