| 释义 |
DEFINITIVE EXAMPLES 权威例句〔hypabyssal〕Solidifying chiefly as a minor intrusion, especially as a dike or sill, before reaching the earth's surface. Used of rocks.半深成的，浅成的：在到达地球表面之前的主要作为小型岩石群固化的，尤其象岩脉或岩床的凝固用于指岩石美国传统〔sheet〕Geology A broad, relatively thin deposit or layer of igneous or sedimentary rock.【地质学】 岩床：宽阔的、相对薄的火成的或沉积岩石的沉淀或层美国传统〔sill〕Geology An approximately horizontal sheet of igneous rock intruded between older rock beds.【地质学】 岩床：插入两块老岩层之间的近乎水平的火成岩岩层美国传统〔stratum〕Geology A bed or layer of sedimentary rock having approximately the same composition throughout.【地质学】 地层：组成成份大致相同的沉积岩的岩床或岩层美国传统 |