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
- bright field
- bright flocculus
- bright galaxy
- bright giant
- bright grain
- bright green
- bright heat treatment
- bright hydrogen flocculus
- Bright Internet
- bright limb
- bright line
- bright line spectrum
- Bright Mirror of Materia Medica
- Bright Moonlight in Night
- bright mottle
- bright nebula
- bright nebulosity
- bright needleleaf forest
- Brightness
- brightness
- brightness coefficient
- brightness constancy
- brightness contour
- brightness distribution
- brightness enhancement films