软件工程 释文 software process engineering metamodel, SPEM 软件过程工程元模型
- heliotherapy
- heliotrope
- heliotropism
- heliotype
- helipot
- Heli Shan
- helitack
- helitron
- helium
- helium-3
- helium-3 A phase
- helium-3 B phase
- helium-3 detector
- Helium 3 proportional counting tube
- helium-4
- helium abundance
- helium atom
- helium atomic spectrum
- helium bubble
- helium burning
- helium cadmium laser
- helium-cadmium laser
- helium content
- helium core
- helium detonation