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
- electric potential difference
- electric potential drop
- electric potential energy
- electric potential gradient
- electric power
- electric power and hydraulic operation table
- electric power archives management
- Electric Power Automation Equipment
- electric power automation instrument and system
- electric power characteristics testing of launch vehicle
- electric power engineering
- electric power environmental technology
- electric power industry
- electric power industry in Anhui Province
- electric power industry in Argentina
- electric power industry in Australia
- electric power industry in Beijing Municipality
- electric power industry in Brazil
- electric power industry in Canada
- electric power industry in Chongqing Municipality
- electric power industry in Denmark
- electric power industry in France
- electric power industry in Fujian Province
- electric power industry in Gansu Province
- electric power industry in Germany