1.the saclike body cavity of a coelenterate.
腔肠动物像囊一样的体腔。
2.The layer of gelatinous material that separates the inner and outer cell layers of a coelenterate.
中胶层一种将腔肠动物的内外细胞层分开的胶状物质层
3.The saclike cavity within the body of a coelenterate.
体肠腔腔肠动物体内的囊状腔
4.one of two forms that coelenterates take: is the free-swimming sexual stage in the life cycle of a coelenterate and has a gelatinous umbrella-shaped body and tentacles.
两种腔肠动物形式之一：腔肠动物生命周期中自由游动的有性阶段和凝胶质伞状身体及触须。
5.A coelenterate, such as a hydra or coral, having a cylindrical body and an oral opening usually surrounded by tentacles.
水螅型珊瑚虫，水螅虫一种有柱状身体和通常被触角包围的口部开口的腔肠动物，比如水螅或珊瑚虫
6.The tentacled, usually bell-shaped, free-swimming sexual stage in the life cycle of a coelenterate, such as a jellyfish.
水螅水母有触手的，通常呈带状的，生命周期中有性阶段自由游动的腔肠动物，如水母
7.The flat, free-swimming, ciliated larva of a coelenterate.
浮浪幼体腔肠动物其扁平的，能自由浮游的，有纤毛的幼体
8.59 species of benthos,which consist of 25 species of crustacean, 22 species of mollusc, 9 species of echinoderm,I species of coelenterate,1 species of annelidan and 1 species of urochorda, were caught by bottom trawl in four seasonal surveys in the Bohai Sea from 1992 to 1993. The total catch of benthos were 2,224.245kg, of which crustacean accounted for 61.7%, mollusc for 33.5%, echinoderm for 4.6% and others for 0. 2%.
1992－1993年渤海增殖生态基础调查，4个航次共捕获底栖动物59种，2224．245kg。 其中甲壳动物25种，占总重的61．7％，软体动物22种，占33．5％，棘皮动物9种，占4．6％，其他类别包括腔肠动物1种，环节动物1种和尾索动物1种，共占0．2％。
