collision theory hard sphere theory
hard sphere theory collision theory
lipoid-sieve theory lipoid-filter theory
TRIZ theory of inventive problem solving theory
TRIZ发明问题解决理论理论
TRIZ理论发明问题解决理论
(the)medical cost social pool for major diseases
a family’s social standing
a harmonious social environment
a sense of social group
a universal social structure
a virtuous circle of social security
ability of social adaptation
Academic Member of Chinese Academy of Social Sciences
achievement on social science
address in social intercourse
aggregate social product
agricultural and social services
agricultural social service