由于没有世代交替，水母阶段遭到完全抑制；海葵；珊瑚虫。
No alternation of generations the medusoid phase being entirely suppressed: sea anemones; corals.
在黄河兰州市区段采集水样，利用嗜热四膜虫（Tetrahymena thermophila）BF5的生长曲线和世代时间作为指标来评价水质。
The growth curve and generation times of Tetrahymena thermophila BF5 are used to study the water quality of the Yellow River in Lanzhou City with five samples.
报道了龙眼角颊木虱的各个虫态及全世代的发育起点温度和有效积温，并与实际发生情况作了初步验证。
This paper dealt with the developmental temperature and effective accumulated temperature of different stage and whole generation of Longan psyllid.
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