PBn.出版委员会（＝Publication Board）；出版物公报(=Publication Bulletin)；祈祷书（＝Prayer Book）元素铅 plumbum的缩写.Pb treatments铅处理PB-stearate硬酯酸铅Pb-Ca alloy铅钙合金Pb alloy cast铅合金Pb-feldspar铅长石Pb-Zn alloy铅锌合金PBGA packaging塑封球栅阵列封装Pb-Sn alloys铅锡合金Pb- Sn alloy铅锡焊料Pb system PTCR铅系PTCR