most tunas and billfishes have a series of keels and finlets near the tail.

forked caudal fin a caudal fin with a deeply concave or excavated hind margin, such as in tunas .

叉型尾尾鳍有一个深深地凹曲或后缘内凹，例如鲔鱼。

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because they are always swimming, tunas simply have to open their mouths and water is forced in and over their gills.

因为他们不停地游动，金枪鱼只需要简单地张开嘴，就能使水流过鳃。

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though human engineers are new to the game, tunas and their relatives evolved their "high-tech" designs long ago.

金枪鱼和相关亲族鱼类们在这种所谓的高科技设计上已经发展了很多年，而人类工程师不过是这一领域的新手。

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the internationalcommississioncommission for the conservation of atlantic tunas set the catch late last month in paris.

大西洋金枪鱼保护国际委员会上个月底在巴黎设下捕获量。

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the body shapes of tunas, in fact, are nearly ideal from an engineering point of view.

事实上，金枪鱼的体型在工程师们的眼里，简直近乎完美。

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tunas, mackerels, and billfishes have even more sophisticated adaptations than these to improve their hydrodynamics.

金枪鱼，马鲛鱼，和长嘴鱼类的环境适应能力甚至比那些改进飞行器的航空动力结构更为精细。

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the international commission for the conservation of atlantic tunas recently voted to lower bluefin fishing quotas.

大西洋金枪鱼保护国际委员最近宣布了降低金枪鱼捕捞的配额。

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the nutrient components of yellow fin tunas back muscle were analyzed and its protein nutritive value was estimated.

对黄鳍金枪鱼背部肌肉的营养成分进行了分析，并对其蛋白质营养价值进行了评价。

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any of various scombroid fishes intermediate in size and characteristics between mackerels and tunas .

鲭亚目中的多种鱼，体型和特征介于鲭鱼和金枪鱼之间。

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although most of their scales have been lost, tunas and mackerels retain a patch of coarse scales near the head called the corselet.

虽然大部分的鱼鳞都脱落了，但是金枪鱼和马鲛鱼在他们的头部附近保留了一些粗糙的可叫做盔甲的鱼鳞。

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two of his baits were fresh tunas the boy had given him, as well as sardines to cover his hooks.

他的两个鱼饵是孩子给他的鲜金枪鱼，还有把鱼钩遮盖起来的沙丁鱼。

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the second, alleging that i had obstructed justice by suborning perjury and hiding gifts, passed 221-212, with twelve republicans voting no.

第二，指控我教唆他人说谎从而构成妨碍司法公正，以221票对212票通过，12名共和党人投了反对票。

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simulation training system for ircc's px plant

镇海炼化PX装置仿真培训系统

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ircc; international red locust control organization for central and southern africa;

国际中部和南部非洲赤蝗防治组织；

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the nsc pc87108 chipset, for example, uses its own driver (nsc-ircc. c).

例如，NSCPC87108芯片组就使用自己的驱动程序（nsc-ircc.c）。

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the pioneers outrace the state's capacity to enforce the law and to exercise its own property rights.

这些开拓者们使得政府无法实施（保护森林的法律），也无法行使自己对于森林的财产权利。

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the light source irradiates infrared light onto the biosome from the shotting side of the biosome;

上述光源从上述生物体的拍摄侧对上述生物体照射红外光；

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some people say that youth is a rising sun, carries infinite hope and irradiates dazzling light.

有人说青春是一轮太阳；传递着无穷的希望和无比灿烂的光芒。

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solar light irradiates the water in space through the outer cylinder, the inner cylinder and vacuum and heats the water.

太阳光透过外筒、内筒和真空照射到空间内的水中，对水加热。

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the present invention provides a bug repairing apparatus which irradiates laser lights distributed uniformly on a base plate.

本发明提供缺陷修复装置，其向基板照射具有均匀强度分布的激光。

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