| 释义 |
〔envelope〕The bag containing the gas in a balloon or an airship.气囊：气球或飞艇上容纳气体的袋装物〔enterocoele〕The coelom formed from a pocketlike outgrowth of the wall of the archenteron, especially in echinoderms and chordates.肠体腔：由原肠壁的袋装生长而形成的体腔，尤其存在于棘皮动物和脊索动物中 |