英语单词分类 轻松记单词

更新时间:2024-12-23 09:00:34
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noun

1. a horny material from the upper jaws of certain whales
used as the ribs of fans or as stays in corsets

Synonym: whalebone

1. 鲸须:前者不具齿(胎儿期具齿),由上腭部角质化板排列成行,自口顶下垂,以滤食小型水生生物,称为鲸须(baleen). 须鲸为现存最大的哺乳动物,约为最小的哺乳类(如鼩鼱)体重的2000万倍. 动脉直径达30cm,心脏每次收缩可卿出45dm3~68dm3的血液.

2. 鲸须 (名):bale 打包; 包装; 捆包 (动) | baleen 鲸须 (名) | baleful 有害的, 恶意的 (形)

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相关列句
It was a time when the killer whales, or "killers" as they were then called, helped the whalers catch the baleen whales that were on their annual migration.(在那个时期,杀人鲸,正如当时他们被称呼的,帮助捕鲸者捕杀在每年迁移途中的须鲸。)
One group of whales has, instead of teeth, long strips of bone, hanging from their upper jaw. This is the baleen whale, the largest animal in the world.(有一类鲸鱼,用从上额骨垂下来的长条状的骨头代替牙齿,它就是须鲸,是世界上最大的动物。)
However, the position of the eyes so restricts the field of vision in baleen whales that they probably do not have stereoscopic vision.(但是眼睛的位置如此严重地限制了须鲸的视野,以致于它们可能不具备立体视觉。)
Surfacing in warm winter waters off the Baja California coast, a gray whale flashes its baleen plates by a boat.(下加利福尼亚海岸(BajaCaliforniacoast)附近,在冬日温暖的海水里,一条灰鲸浮在水面上,露出了鲸须板,旁边是一条船。)
There is a known as the "tiger of the sea" killer whale, sometimes dozens of head formed a group, surrounded by a more than 30 tons of baleen whales, a few hours ate it up.(有一种号称“海中之虎”的虎鲸,有时好几十头结成一群,围住了一头三十多吨重的长须鲸,几个小时就把它吃光了。)
Each side of the upper jaw has 350-400 baleen plates.(上颌两侧各有350-400个鲸须板。)
If we want to understand the factors that led to gigantism in baleen whales, we'll need to look at fossils yet to be discovered or described.(如果我们想更进一步弄清楚导致须鲸体型巨大的缘由的话,我们还需那些尚未被发掘或还原出得化石来佐证。)
Baleen whales have been tracked by autonomous gliders before, by researchers at Woods Hole Oceanographic Institution, Massachusetts.(马萨诸塞州的WoodsHoleOceanographic研究的研究员们以前是用自主滑翔器来跟踪须鲸。)
Baleen traps prey when the whale expels water.(布赖德鲸通过排出水流就可以捕食猎物。)
Baleen whales, including the humpback whales and blue whales, are toothless and instead use hairlike structures called baleen to filter tiny prey such as krill from seawater.(长须鲸包括座头鲸和蓝鲸都是没有牙齿的,它们用一种类似毛发般的细小结构——鲸须作为替代捕食方法,利用它们过滤海水中的食物,例如磷虾。)
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