undersurface
英['ʌndə'sə:fis]美['ʌndə'sə:fis]
n. 下面;下侧;底面
| 同： |
- One of the five radial areas on the undersurface of the starfish and similar echinoderms, from which the tube feet are protruded and withdrawn.
步带海星和类似棘皮动物底部五个辐射状排列部位中的一个，触手从这里进行伸缩 收藏 - One of the five radial areas on the undersurface of the starfish and similar echinoderms,from which the tube feet are protruded and withdrawn.
步带海星和类似棘皮动物底部五个辐射状排列部位中的一个，触手从这里进行伸缩收藏
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