来自专业的译者、企业、网页和免费的翻译库。
atomenerģijas sektorā starp asv un psrs notikaintensīva sacensība.
on 12 august 1953, the detonation of the first soviet hydrogen bomb (an h-bomb) was carried outagainst the backdrop of intense competitionbetween the us and the ussr in the atomic energysector.