main parts of narration
change of parts of speech
conversion of parts of speech
the flexibility of parts of speech
the flexible use of parts of speech
transformation of parts of speech
a whole period of main field growth
Abstracts of Main Articles
Affine Model of Main Axes
analysis method of main composition
analysis of main compositions
Analysis of Main Factor
Analysis of Main Factors
analysis of main parameter
approximate expressions of main frequencies and responses
Arch Crown of Main Powerhouse
Assessment of main dimensions