koller refrigeration equipment co., ltd. guangzhou guangdong china add this product to the cart tons/ day high quality block ice machine with ce certificate like moq set certification ce, iso model: mb brief description: our tons/day ice block machine is in high quality. best materials, stainless steel...
, which led to the recovery of the luminescence of the nanorods. a good linear relationship between the luminescence intensity and concentration of as(iii) was obtained in the range from to ng·ml− , with a detection limit of ng·ml− . furthermore, the developed sensors showed good specificity towards...
vahend fütoplanktoni koosseisu selgitamiseks järvedes ja rannikumeres juhendajad: professor tiina nõges, teadur rene freiber margot sepp organic matter in temperate lakes – monitoring and connections with catchment orgaaniline aine parasvöötme järvedes – seire ning seosed valgalaga juhendaja:...
agricultural products is still low compared to the potential . from to vietnam agricultural exports increased by over % from billion to $ billion. but according to economic experts , the growth rate of agriculture was not commensurate with the potential . the competitiveness of agricultural products...