计算机应用 科学与工程计算 释文 computational cosmology 计算宇宙学
- background value of elements in soil
- background value of soil elements
- background value of soil environment
- background wave
- background wood
- backgroung risk
- back hall of Er xian temple in Xixi, Lingchuan
- backhoe loader
- backhoe single bucket hydraulic excavator
- back-illuminated image sensor
- backing
- backing layer materials of patches
- backing-off
- backing store
- backlash
- backleg
- back light
- backlight
- backlit view
- back lobe
- backlot
- Backlund
- Backlund crater
- Backlund transformation
- back mixing