昆虫和软体动物等一些动物的装卵的保护囊；卵鞘。
A protective capsule of certain animals, such as insects and mollusks, that contains eggs; an ootheca.
答案就是一种单分子，这种费洛蒙通过雌性乌贼的生殖腺渗入卵鞘。
It is a single molecule: a pheromone protein incorporated into the outer layer of egg capsules by glands in the female reproductive tract.
记述美洲大蠊卵鞘上发现的两种螨类的形态、生物学、寄主或栖息地和国内分布等。
The morphological characteristic, biology, habitat, host and distribution data on two species of mites found on the egg pouch of American cockroach Periplaneta American l.
记述美洲大蠊卵鞘上发现的两种螨类的形态、生物学、寄主或栖息地和国内分布等。
The morphological characteristic, biology, habitat, host and distribution data on two species of mites found on the egg pouch of American cockroach Periplaneta American l.
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