二次空间变换
Quadric spatial transform
二次空间的格
lattice in a quadratic space
二次空间的根
radical of a quadratic space
二次空间分配
secondary space allocation
二次空间配置
secondary spatial allocation
箭图的二次空间
quadratic space of quiver
空间二次变换
space quadratic transformation
部分二次二阶矩法
Part Second Order and Second Moment Method
二次除尘
secondary dedusting
secondary off-gas cleaning
secondary fume dedusting
secondary dust-remove
二次除鳞系统
Secondary descaling system
二次除油罐
secondary oil removal tank
二次二阶矩
quadratic second ordered moment