求翻译：20世纪50年代初，美国经济学家里昂惕夫对要素禀赋的理论提出了质疑，被后人称为“里昂惕夫之谜”，它的提出成为西方传统微观国际贸易理论在当代的新发展的转折点。是什么意思？

The early 1950s, the U.S. economist Leontief factor endowment theory of questioning, was later known as the "Leontief mystery", which has been proposed in the Western tradition of microeconomic theory of international trade, new developments in contemporary turning point.

In the early 1950s, the United States labeled economists Lyon to put forward the theory of factor endowments, questioned after being labeled as "Lyon's mystery" which has been proposed as a Western traditional micro International trade theory in contemporary new development of turning point.

The 20th century at the beginning of 50's, the American economist Lyons cautious husbands proposed to the essential factor talent theory the question, is called by the posterity “riddle of the Lyons cautious husband”, it advances into the Western tradition microscopic international trade theory in t

In the early 1950 of the 20th century, the United States economists Lyon watchful factor endowment theory questioned, was later known as "Lyon watchful servant of mystery", its proposed a Western tradition new turning point in the development of micro-international trade theory in contemporary.

At the beginning of the fifties the 20th century, the American economist cautious in Lyons queried theory of the factor endowment, call descendant " the Lyons cautious mystery of ", proposition of it become western traditional micro international trade theory in contemporary turning point of new dev