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
- 3D geological & geophysical modeling
- 3D geological structure model
- 3D geologic modeling
- 3D GIS
- 3D glasses
- 3D graphics application programming interface
- 3D holographic display technology
- 3 D imaging
- 3-D imaging
- 3D imaging
- 3-dimensional classification
- 3-dimensional conformal radiation therapy，3DCRT
- 3 dimensional laser scaner
- 3 dimensional manifold
- 3-dimensional manifold
- 3-dimensional space
- 3D interaction
- 3D laser scanning technology in civil engineering
- 3D loom
- 3D map
- 3D map geometric model construction
- 3D map interaction
- 3D map rendering
- 3D map scene
- 3d-matching algorithm