鳍

The main committee of CITES discussed a group of them, including the hammerhead, oceanic whitetip, porbeagle and spiny dogfish.

CITES的委员提出一组不同种类的鲨鱼候选名单供讨论，包括锤头双髻鲨，远洋白鳍鲨，鼠鲨以及白斑角鲨。

Species targeted this way in UK waters include the shortfin mako, blue, smooth hammerheads and thresher sharks, as well as species such as Portuguese dogfish and gulper sharks.

在英国水域上，受到如此待遇的目标群体包括短鳍灰鲭鲨、蓝鲸、锤头鲨、长尾鲨，以及像葡萄牙角鲨和刺鲨。

The geometric features of the body and locomotive characteristic and parameters of the flexible dorsal fin are discussed.

以依靠长背鳍推进的"尼罗河魔鬼"为研究对象，对弓鳍目模式推进进行了研究。

Bony freshwater fish Amia calva of central and eastern North America , with a long , spineless dorsal fin .

弓鳍鱼北美洲中部和东部的一种原始，多骨的淡水鱼，具有长的无脊的背鳍

The dorsal fin is the vertical fin on the back of a fish and certain marine mammals.

背鳍就是在鱼或者某些海洋哺乳动物背上的垂直鳍。

Lionfish are also called Dragonfish or Scorpionfish. Lionfish are known for their large spiked dorsal fins and the distinctive striped markings on their bodies.

石鱼也称为龙鱼或蝎尾鱼，最为人所知的是它们背脊上钉状的鳍，和身上醒目的条纹。

Far over the ice, between the hemlock woods and snow-clad hills, stands the pickerel-fisher, his lines set in some retired cove, like a Finlander, with his arms thrust into the pouches of his dreadnaught; with dull, snowy, fishy thoughts, himself a finless fish, separated a few inches from his race, dumb, erect, and made to be enveloped in clouds and snows, like the pines on shore.

一个渔夫站在冰面上，位于铁杉树林与覆盖了皑皑白雪的小山之间，像芬兰人一样，他将鱼线垂放在小河湾中，手插在大衣口袋里，一动不动，像有着鱼一样的思维，因此他自己就是一个无鳍的鱼，而他的同类在冰面下的不远处；他静谧地伫立着，被云和雪包裹着，就像岸边的松树。

The Sombold 344 had an ejectable explosive nose section filled with 500 kg (1100 lbs of explosives, which was fitted with stabilizing fins and a proximity fuse.

该sombold 344了ejectable爆炸性的鼻子第（填充500公斤（ 1100磅）的炸药），这是装有稳定鳍和邻近的导火索。

With the purified α-NT-linked affinity chromatography, nicotinic acetylcholine receptor is purified from the electric organ of ray .

以α-NT制作亲和胶柱，纯化了黑斑双鳍电鳐电器官中的烟碱型乙酰胆碱受体。

The penguins' wings act like flippers enabling them to swim in the ocean.

企鹅的翅膀就像鳍一样使它们能在海洋中游。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。