current theory study

theory study

collision theory hard sphere theory

hard sphere theory collision theory

lipoid-sieve theory lipoid-filter theory

TRIZ theory of inventive problem solving theory

“archaeological” study in linguistics

“process-interaction-action” study

1 Matched case-control study

1︰1 matched case-control study design

1∶2 matched case-control study

2 matched case-control study

28-day toxicity study

3D Anthropometric phantom study

3-D finite element study

4 A study

A Brief Study of Music Poems of Tang Dynasty

a case of study

a case study

A case-control study