pulev.发轻叫声；低声啜泣puln.普尔(阿富汗货币单位)Pulsatilla Decoction白头翁汤pulmonic accentuated[医] 肺动脉瓣杂音pulsation of current电流脉动pulverized fuel pipe喷射燃油管pulsing power supply脉冲电源pulsatile flow model脉冲流动模型pulae duration coder脉冲宽度编码器pulverized coal size粒度pulverizer exhauster排粉机Pulmontory infection肺部感染