nemerteans是什么意思

用法例句

Only 13 nemertean species have been mentioned for their chromosomes in literatures, but there were no karyotype analyses.

迄今,在已知的1275种纽形动物中,仅13种纽虫有过染色体数目报道,没有任何核型研究;仅一种纽虫的DNA含量得到研究。