文学 计算语言学 释 Chomsky hierarchy 乔姆斯基层级 A.N.乔姆斯基（Avram Noam Chomsky，美国，1928～ ）划分排序的四类形式语法。
Chomsky hierarchy 乔姆斯基分层
理论计算机科学 形式语言与自动机 释文 Chomsky hierarchy 乔姆斯基谱系
- drug pool's management system
- drug pre-treatment by ultrafiltration technology
- drug pretreatment techniques for equilibrium dialysis method
- drug prevention
- drug pricing management
- drug protection
- drug provision and security system
- drug quality
- drug rapid inspection
- drug raw materials testing
- Drug-Receptor Interaction Theory
- drug reevaluation
- drug rehabilitation
- drug resistant gene
- drug resistant strain
- drug safety monitoring
- drug safety ratings
- drugs affecting autacoids
- drugs affecting efferent nerve system
- drug safty control
- drug screening
- drug screening chip
- drugs during lactation
- drugs during pregnancy
- drug-seeking behavior