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
- electronic records systematic management
- electronic records transfer and accession
- electronic registration identification of the motor vehicle
- electronic reserved books
- electronic resources importation
- electronics
- electronic sacrificial agent
- electronic sand table
- electronics Beijing
- electronics brain storming
- electronic scram
- electronic screening
- electronic sequencer
- electronics Guangzhou
- electronic shedding mechanism
- electronic signaling system
- electronic signature
- electronic signature law
- Electronic Signature Law of the People's Republic of China
- electronic signature verification
- electronic sky screen equipment
- electronic social security
- electronic socks
- electronics of superconductivity
- Electronic sound synthesizer