| |||
biprism | |||
column pair; coupled columns; double column vertical boring machine (立式镗床); double strut; geminated columns; paired columns; pair of columns; twin columns; queen post | |||
| |||
queen post; queen-post | |||
| |||
double column | |||
double column vertical boring machine | |||
| |||
queen post | |||
| |||
coupled columns |
双柱 : 374 phrases in 32 subjects |