| 单词 | periodic system |
| 释义 | > as lemmasperiodic system periodic system n. Chemistry = periodic classification n. ΘΚΠ the world > matter > chemistry > elements and compounds > periodicity > [noun] law of octaves1865 periodic law1872 periodic system1875 period1879 periodicity1879 periodic classification1881 periodic table1890 1875 Chem. News 24 Dec. 294/1 These characters of [gallium]..have been obtained..by considering its place in the periodic system of the elements. 1969 J. W. van Spronsen (title) The periodic system of chemical elements. 2001 Slavic Rev. 60 757 Mendeleyeev is best known as the formulator of the periodic system of chemical elements. < as lemmas |
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