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
- insurance economics
- insurance event
- insurance fee rate
- insurance for poverty alleviation
- insurance fraud
- insurance fraud behavior
- insurance fraud prevention
- insurance guaranty fund
- insurance guaranty fund in China
- insurance hypothesis
- insurance investment
- insurance investment funds
- insurance investment institutions
- insurance investment management
- Insurance Law of the People's Republic of China
- insurance liability
- insurance literacy
- insurance market
- insurancemarket behavior regulation
- insurance marketing
- insurance marketing strategy
- insurance mathematics
- insurance mono-line principle
- insurance of agrometeorological disasters
- insurance of cultural relics