created sense approved 石炭系 · shítànxì · Carboniferous system — "Initial import from upstream dictionary"
石炭系
shítànxì
Carboniferous system
The system of rock layers deposited during the Carboniferous period
石炭 (literal) → 石炭 · shítàn · coal 系 (literal) → 系 · xì · system (geology)
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition
created sense approved 石炭系 · shítànxì · coal measures — "Initial import from upstream dictionary"
石炭系
shítànxì
coal measures
A sequence of rock strata containing numerous coal seams, typically from the Carboniferous period
石炭 (literal) → 石炭 · shítàn · coal 系 (literal) → 系 · xì · system (general)
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition