The concepts of (deterministic) lattice-valued regular grammars(DLRG and LRG, respectively) and (deterministic) lattice-valued regular languages are formulated.
给出了（确定）格值正则文法与（确定）格值正则语言的定义。
2
The key research tasks which laser range gated (LRG) imaging system need to focus on are discussed. The development trends of range gated active imaging are predicted.