Sentences with phrase «little research on tropical»
Yet, little research on tropical herbs was being done and recorded.
http://www.sciencemag.org/ Not exact matches
But if «little or no progress» on this problem has been made in the tropical Atlantic «over the past decades,»...» [Xiuquan Wana, Ping Changa, Charles S. Jacksonn, Link Jia, Mingkui Lia 2011: Deep Sea Research Part II: Topical Studies in Oceanography]