spiral staircase

n.

螺旋梯；盘梯；

SPIRAL STAIRCASE
Spiral staircase
Spiral staircase
A Conservatory Gets an Operatic Gesture
Molecules with helical structure: how to build a molecular spiral staircase.
Spiral staircase kit
Segmented spiral staircase and kit for its construction
Cartan's spiral staircase in physics and, in particular, in the gauge theory of dislocations
Full-scale test and finite element analysis of a wooden spiral staircase
Portable spiral staircase
Conversion from a Heterochiral [2+2] Coaxially Nested Double-Helical Column to a Cationic Spiral Staircase Stimulated by an Ionic Li...
Comparative psychology, a new perspective for the 21st century: Up the spiral staircase
Spin gap and string order parameter in the ferromagnetic spiral staircase heisenberg ladder: a quantum Monte Carlo study.