degenerate quadratic form
退化二次型数
热门单词
- ballas type diamond
- ballast
- ballast bed
- ballast cargo
- ballast coil
- ballast compactor
- ballast declaration
- ballast car
- ballast cleaner
- ballast fin
- ballast for cruising
- ballast lamp
- ballast leakage resistance
- ballast main line
- ballast pressure
- ballast pump
- ballast mat
- ballast regulator
- ballast resistance
- ballast resistor
- ballast scarifier
