乌龟龟纹造型刷柄，活泼可爱，能增加儿童对刷牙的兴趣，并且有益于对儿童智力的开发。
More turtle style brush handle, lively and lovely, can increase interest in children's teeth, and the benefit of intellectual development.
它的主体部分有个大的根状固着器固着于海底、一个中空的柄以及有中空气囊的分支出去的叶片，很像是更高等的植物。
Its body which has a large rootlike holdfast a hollow stipe and branching blades with hollow gas bladders resembles that of higher plants.
黏液腺在胚胎附着过程中形成卵柄和外层卵膜，胚胎是依靠卵柄或卵索附着于腹肢的刚毛上，进而完成胚胎发育过程。
Embryo attachment was affected by the differentiation of egg membrane. Egg stalk and outer egg membrane were formed from mucus during development.
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