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sea urchins

美英

na.【动】海胆
网络海胆类；蝟；金枪鱼

复数：sea urchins

sea urchins

sea urchins

英-汉英-英网络释义

sea urchins

na.

1.【动】海胆

1

And when the fish were all gone , all anyone ever saw underwater was just acres and acres of sea urchins .

而当鱼类消失的时候，任何人都只能在水下只能看到成片成片的海胆。

2

Marine invertebrates, sea urchins use their spines to move along the seafloor, and crabs are known to be their natural predators .

海洋无脊椎动物，海胆利用其刺沿着海底，和螃蟹被称为是他们的天敌。

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He defected, he wrote, by offering to source sea urchins from Japan, from where he never returned .

他还写道，他后来向金正日提出到日本买海胆而借机叛逃，并至今还在日本滞留不归。

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for these spines perform the office of hair , and not of feet as is the case with similar parts of sea-urchins .

因为这些刺构成毛团，不是像海胆相同的部位一样用来作为足。

7

On the sea bed at depths of up to 3, 000ft are vast coral reefs , forests of willowy feather-stars and russet-red sea urchins .

在深达近千米的海底，生长着大片绮丽的珊瑚礁、婀娜多姿的海星和黄褐色的海胆。

8

He allowed these "enucleated " eggs to be fertilized by sperm from sea urchins of the genus Echinus .

他让这些 “无核 ”的卵跟海胆属的海胆的精子受精。

10

All the sea urchins seemed oblivious to the smaller disks, Johnsen's team found .

约翰森的研究小组发现所有的海胆似乎都对小磁盘无动于衷。

11

A nontoxic dye highlights water currents surrounding sea urchins off Vancouver Island , British Columbia .

大不列颠哥伦比亚温哥华岛沿岸，无毒的染料包围了一只海胆。

12

For instance , it appears the ancestor of brainless starfish and sea urchins had a brain .

例如，无脑海星和海胆的祖先似乎曾有大脑。

13

Remains of more modern corals , diverse pelecypods, sea urchins and ammonoids characterize the marine strata of the Mesozoic ERA .

中生代生物的特征是出现较现代的珊瑚，各种各样的瓣鳃，海胆和菊石。

15

Green sea urchins, chitons, and sea stars cluster in a tidal pool off Alaska 's Aleutian Islands.

绿色海胆、石鳖和海星簇居在阿拉斯加阿留申群岛的潮汐池里。

16

Sea urchins brandish their spines on the seafloor near the Channel Islands .

海胆在海峡群岛附近的海底挥舞着它们的棘突。

19

Bottom-dwelling creatures like mussels, brittle stars and sea urchins have not developed any defenses .

类似贻贝、海蛇尾和海胆这样生活在海底的生物尚未演化出任何防御能力。

20

Too many sea urchins can virtually clear- cut the underwater kelp forest where fish live and hide .

过量的海胆会把海藻吃光，令鱼类失去栖息地。

21

Without sea otters keeping sea urchins in check, their population has exploded .

没了海獭约束海胆，海胆的数量变得庞大起来。

22

The same sea urchins , sea urchins but the two places has a qualitatively different .

同是海胆，但是两地的海胆却有着质的不同。

24

The sea off Dalian abounds with quality seafood , such as abalones , sea cucumbers, scallops, prawns, crabs, and sea urchins .

大连外海盛产优质的海鲜，如鲍鱼、海参、扇贝、虾、蟹和海胆。

25

Port Jackson sharks can grow up to 1 . 6 meters long (5. 5 ft ) and typically feed on crustaceans , sea urchins , and fish.

来自 PortJackson 的鲨鱼最大可以长到 1.6 米长（5.5 英尺），通常以甲壳类动物，海胆和鱼为食。

26

Shrimp may soon be given disease--fighting genes taken from sea urchins .

不久也许可以给虾配上从海胆提取的抗病基因。

27

Reaching 5 feet (1 . 5 meters ) long, wolffish have conspicuous dentition suited to a diet of hard-shelled mollusks, crabs, and sea urchins.

体长最多可达 5 英尺（1.5 米）的狼鱼有着明显的齿系以适应由裹着硬壳的软体动物，蟹类以及海胆组成的食谱。

28

Popularlyknown as starfish , sea stars are actually echinoderms, closely relatedto sea urchins and sand dollars.

海星实际上是棘皮动物，和海胆和饼海胆是近亲。

29

Sea urchins are a constant annoyance.

海胆永远是一个骚扰者。

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The most acceptable external tag is the nylon screw tag , which is suitable for studying the behavior of sea urchins.

较理想的外部标志方法是尼龙螺丝钉标志法，适用于海胆的行为研究；

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