目的探讨椎实螺个体大小对淮河水系毛毕吸虫感染的影响。
Objective To study the effect of Lymnaeidae size on infection of Trichobilharzia living in the Huaihe River system.
目的探讨淮河水系毛毕吸虫中间宿主椎实螺种类、感染情况及繁殖节律。
Objective To investigate species, infection and breeding regulation of the intermediate host of Trichobilharzia in the Huaihe River System.
目的探讨淮河水系毛毕吸虫中间宿主椎实螺的种类、感染情况及繁殖节律。
Objective To investigate the species, infection rate and rhythm of reproduction of the Lymnaeidae, intermediate host of Trichobilharzia in the Huaihe River System.
然而，有一种叫做“静水椎实螺”的田螺，它是同时拥有顺时针和逆时针螺壳的典型代表。
However there is one species of pond snail, Lymnaea stagnalis, which demonstrates examples of both clockwise or anticlockwise spiralling shells.
然而，有一种叫做“静水椎实螺”的田螺，它是同时拥有顺时针和逆时针螺壳的典型代表。
However there is one species of pond snail, Lymnaea stagnalis, which demonstrates examples of both clockwise or anticlockwise spiralling shells.
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