الواصلة
Ball screwالتركية النطق
bôl skruالنطق
/ˈbôl ˈskro͞o/ /ˈbɔːl ˈskruː/
علم أصول الكلمات
[ 'bol ] (noun.) 13th century. Middle English bal, from Old Norse bollr; akin to Old English bealluc testis, Old High German balla ball, Old English blAwan to blow.