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
- cropping systems in medieval Europe
- crop population structure
- crop potential productivity
- Crop Protection
- crop quality
- crop quality analysis by remote sensing
- crop radiation mutation breeding
- crop resistance
- crop rotation
- Crop Science
- Crop Science Society of America，CSSA
- Crop Science Society of China，CSSC
- Crop Science Society of Japan, CSSJ
- Crop Science Society of the Philippines
- crop seed testing
- crop shear
- crop smart management
- crop straw carbonization
- crop straw carbonization engineering
- crop straw returning
- crop structure adjustment
- crop system
- crop system modeling
- crop transpiration
- crop transplanting