- rod bivalent
- открытый бивалент* * *отрытый бивалент
English-russian biological dictionary. 2013.
English-russian biological dictionary. 2013.
strontium — strontic /stron tik/, adj. /stron shee euhm, sheuhm, tee euhm/, n. Chem. a bivalent, metallic element whose compounds resemble those of calcium, found in nature only in the combined state, as in strontianite: used in fireworks, flares, and tracer … Universalium