help with some words in the plans
 

hello, i'm quite good at building foamboard planes, but now i want to try something from balsa, i've downloaded telemaster 400 plans, i've changed all measure units ibto metrical system... but still, because my english skills are not perfect, i can't understand some things here, maybe someone can explain me with simple words, what is SPAR(HARD), SHEAR WEBS and some mysterious looking T.E and L.E.(full thing looks like "1/4 sq t.e.")

oh, i'm sorry, admins, pls delete this, i got error while posting my previous thread, and i thought it hasn't posted