Penit佩尼特
penn.钢笔;笔;写作;围栏;雌天鹅v.写;把…关在圈中
penhold grip backhanded stroke直拍反手正面攻球
penetrability of coating layer包膜通透性
pen-and-paper presentation纸笔呈现
penicillium nutritional mutant青霉菌营养突变型
penetrating into cooling water穿水冷却
Penicillium cyaneofulvum virus蓝棕青霉病毒
penetrating power of radiation放射线穿透力
pen-based interface software笔式界面软件
Pensky-Martens closed tester鼓斯克-马丁密闭式石油产品闪点试验器