您要查找的是不是：
- P-矩阵P-matrices
- 均值P-C矩阵mean P-C matrix
- "pin"中"p"的送气发音the aspiration of "p" in "pin"
- 转换[过渡]矩阵transition matrix
- Ｓ矩阵S matrix
- 他在文件上签上姓名的首字母G.P.S。He initialed the paper G.P.S.
- 矩阵邻接matrix adjacency
- p-n 结p-n junction
- 矩阵式顺序控制器matrix sequence controller
- Pphosphorus (P)
- Ｓ矩阵理论S matrix theory
- P圈P-cycle
- 半矩阵semi matrix
- P型p-type
- 半单矩阵semisimple matrix
- P光p-component
- P群p-group
- 伴随式矩阵syndrome matrix
- 半负定矩阵negative semidefinite matrix
- P肥K fertilizer
