您要查找的是不是：
- 高性能PNP管high performance PNP transistor
- 衬底PNP管substrate PNP transistor
- 横向PNP管LPNP
- 结果表明：在辐照的剂量率范围内，无论是国产还是进口的双极晶体管，都有明显的低剂量率辐照损伤增强现象，且NPN管比PNP管明显。The results show that enhanced low-dose-rate sensitivity (ELDRS) exists in both domestic and imported bipolar transistors, and the NPN transistors are more obvious than PNP transistors.
- 品管QA
- 排气管vent-pipe
- 配管tubing
- 热管thermotube
- 盘管pipe coil
- 别管no matter (who/what etc.)
- 只管(adv) no need to think about; by all means
- 品管部quality control department
- 单管monotube
- 流管flow passage
- 圆管circular tube
- 保险管protective tube
- 针管needle tube
- 支管manifold branch
- 直管ascending pipe
- 不锈钢管stainless steel tube
