The annual cycle of gonad development and the fertilization of the nemertean, Procephalothrix simulus, were studied by histological method.
用组织切片法对扁额原细首纽虫周年性腺发育及受精过程进行了初步的研究。
The annual cycle of gonad development and the fertilization of the nemertean, Procephalothrix simulus, were studied by histological method.
用组织切片法对扁额原细首纽虫周年性腺发育及受精过程进行了初步的研究。
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