您要查找的是不是：
- H-P滤波H-P Filter
- H-P滤波法H - P Filtering Wave
- P.H.P泥浆P.H.P mud
- 中值滤波median filtering
- "pin"中"p"的送气发音the aspiration of "p" in "pin"
- 卡尔曼滤波Kallman filtering
- 复合轧制P-H图composite rolling P-H diagram
- 低通滤波low-pass filtering
- 他在文件上签上姓名的首字母G.P.S。He initialed the paper G.P.S.
- 滤波电容filter capacitor
- p-n 结p-n junction
- H桥H-bridge
- Pphosphorus (P)
- H-2H-2
- 包滤波packet filtering
- h形H-shaped
- P圈P-cycle
- 数字滤波digital filtering
- P型p-type
- H圈Hamihonian cycle
