Ohcanbohtosat - (((( strength of materialow ) OR ( strength of materials ))) OR ( strength of materal ))~

Eai bohtosat!

Ozuin - (((( strength of materialow ) OR ( strength of materials ))) OR ( strength of materal ))~ - eai gávdnon bohtosat.

Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.