pencil of parallel lines的意思|示意

美 / / 英 / /

平行线笔

平行线束 ... number of scanning lines扫描行数 pencil of parallel lines平行线束 orientation of mesh lines网格线的定向 ...

并行线束 ... 矩阵束 pencil of matrices 并行线束 pencil of parallel lines 面束 pencil of planes ...