Zobrazeno 1 - 4
of 4
pro vyhledávání: '"YAO Ling-yi"'
Publikováno v:
Shipin yu jixie, Vol 39, Iss 6, Pp 59-64,87 (2023)
Objective: The uncertainty of determination of three pyrethroid pesticides （cypermethrin, fenvalerate and deltamethrin） in fresh tea leaves by gas chromatography was evaluated. Methods: A mathematical model was established according to the determ
Externí odkaz:
https://doaj.org/article/30e6dc60fba744169d4583ecb7b4bba3
Publikováno v:
Applied Mechanics and Materials; November 2012, Vol. 217 Issue: 1 p1815-1818, 4p
Publikováno v:
Journal of Asian Natural Products Research; Jan2001, Vol. 3 Issue 1, p1-7, 7p
Learn and review Chinese grammar at a glance Of all the obstacles you face while learning a new language, grammar is one of the toughest. But now there's a way to learn the subtleties of grammar without all the headaches. Side by Side Chinese & Engli
