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
- fertilizer slowing/controlled release material
- fertilizer spreader
- fertilizer synergist
- fertilizer use efficiency
- fertilizin
- ferulic
- ferulic acid
- fervent
- fervorization
- FES
- Feschbach resonance
- FESEM
- Feshbach resonance
- FeSiAl合金
- FESMAN
- Feso
- FESS
- Festac 77
- festival and event tourism
- Festival Custom of the Sui and Tang Dynasty
- Festival de Artes de Macau
- festival entertainment sports
- Festival of Unleavened Bread
- festival public relations activities
- festival recreational sports