กลับมาอีกครั้งยายแลหวยไทเลย แม่นที่สุดงวดนี้ 1/06/62 แนวทางสลากกินแบ่งรัฐบาล
Airports are needing to study the wake turbulence of aircraft taking off at large airports to improve safety. Wake turbulence has caused many accidents between large aircraft and smaller ones literally turning the aircraft upside down and putting it into a death spiral.
from: http://ezinearticles.com/?Studying-Wake-Turbulence-at-Airports-Using-the-Sun-As-Background&id=81927
