xū jīng
意思解释：（Beard whale）鲸的一类，没有牙齿，有鲸须，吃甲壳动物和小鱼。如：长须鲸、蓝鲸等。
一种鲸，没有牙齿，只有鲸须。1922年《动物学大辞典》:“须鲸类:亚目名，属脊椎动物哺乳类有胎盘类游水类，一名无齿类。初生之胎儿，虽有萌芽状之齿，渐长则脱落，以鲸须代之。”1936年《科学画报》第三卷第十四期:“须鲸没有牙齿的…
A kind of whale, without the tooth, have baleen only. 1922 zoologic big dictionary : Name of suborder of of ɡ of target cutting of the feet, belong to vertebrate lactation kind have placenta kind swimming kind, one does not have tine kind. What be born first is fetal, although have a tooth-like part of anything of budding shape, grow to fall off gradually, take the place of with baleen. 1936 scientific pictorial the 3rd the 14th period: Does brandish of of target cutting of the feet wake Lai You copy
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