Hvernig á að dæma "helium"
Bæta við eigin framburði þinn af "helium"
Merkingar og skilgreiningar á "helium"
- Noun
a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
Samheiti: