I designed the parts for the displa

I designed the parts for the displacer piston on my computer - calculating the circumference from the desired diameter (multiplying the diameter by Pi).

I printed out the parts on some thickish silver-grey paper.

ผลลัพธ์ (อังกฤษ) 2:

The Parts I Designed for The displacer piston on My Computer - The Circumference calculating from The desired Diameter (Multiplying The Diameter by Pi). I Printed out on some thickish Parts The Silver-gray Paper.