spirograph

n.

呼吸运动记录器；

Spirograph
Spirograph
Spirograph inspired visualization of ecological networks
Spirograph Theory: A Framework for Calculations on Digitized Straight Lines
Atomic spirograph : Quantum state measurement using coherent transients
The Vortex Spirograph: Dipole Dynamics in Bose-Einstein Condensates
Trochoids, Roses, and Thorns-Beyond the Spirograph
Assessment of a new "dry"piston spirograph: the Eutest (Vicatest).
Compact Spirograph Planar Monopole Antenna Covering C-/X-Band With Invariant Radiation Pattern Characteristics
Respiratory dyskinesia: a variety of clinical forms differentially diagnosed by using a spirograph