tunas

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。

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。

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。

Mackerels; tunas; albacores; bonitos; swordfishes; sailfishes.

鲭；金枪鱼；青花鱼科的海产鱼；鲣；旗鱼；旗鱼。

These species consist of the so-called principal market tunas and some billfishes.

这些品种包括 所谓 的主要市场金枪鱼和一些旗鱼.

The boy had given him two fresh small tunas, or albacores, which hung on the two deepest lines.

男孩给了他两条新鲜的小鲔鱼，或叫青花鱼，现在它们都像铅垂似的挂在两条垂得最深的在。

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。

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。

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。

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。

international commission for the conservation of atlantic tunas

国际大西洋鲔类保育委员会

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

大部分金枪鱼和长嘴鱼类，在他们的尾部都长有一系列龙骨和小鳍。

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。

tunas , whole or in pieces, but not minced, prepared or preserved, canned f01

已调制或保藏鲔类，整条或片块（剁碎者除外），罐头。

international convention for the conservation of atlantic tunas

养护大西洋金枪鱼国际公约

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。

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。

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。