jwala jett drill

ack jwala jett drill ack prakaar kaa drilling upkaran haye jisake dwara drilling satah key saath koee sampark naheen hotaa haye, isaliye drill kabhi bhee cumm naheen hotaa haye.
upkaran ack atee germ hydrogen lau (~ 4000 degree celsius) koo baahar nikaalata haye joe chattan mein chhoti visangatiyon kaa kaaran banata haye aur toot jaataa haye aur uda jaataa haye aur iss prakaar satah koo "drill" kartaa haye.
ack anya prototype drill jise hydro jett drill kahaa jaataa haye, germ nama paristhitiyon mein paani koo atyadhik germ karke aur drav key saath chattan kaa chhidkaav karke kaam karane mein saksham haye.
inn upkaranon koo bhoo-taapiya oorjaa key baare mein ack rashtriya bhaugolik vrittachitra "megastructurers deep arth drillers" mein dikhaaya gayaa thaa. 

