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dorsal fin是什么意思？

dorsal fin

脊鳍

相关词汇
dorsal fin

dorsal

adj. 背的， 脊的，背部的，背面的；

fin

n. 鱼鳍，鳍状物，（汽车、飞机、炸弹上的）尾翅，散热片；vt. 给…装上翅片，切除鳍；vi. 潜泳，（猛烈地）拍动（鳍）；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
I never did like her.
我的确从来没有喜欢过她。
The life of Marx is remarkably well documented.
马克思的生平有极翔实可靠的文献作证。
This question comes into the domain of philosophy.
这一问题属于哲学范畴。
We did the journey in six hours.
我们在六小时之内走完了这段旅程。
a docile animal
温驯的动物
Dr.Edward is a most learned scholar.
爱德华博士是一个知识渊博的学者。
That will do!
行了, 够了。
The report on our economic situation is full of doom and gloom.
这份关于我们经济状况的报告充满了令人绝望和沮丧的调子。
This is domestic news.
这是国内新闻。
The managing director denied that the merger was a done deal, and said they were still in negotiations.
总经理否认合并已经敲定， 声称此事仍在商讨中。
He can document his theory with facts.
他能为自己的理论提供事实证明。
I was quite impressed by her dogged determination to succeed.
她想成功的坚定决心让我印象深刻。
Don’t be so doctrinaire about things.
别那样用理论去解释事物。
The first was the domestication of animals.
第一个阶段是驯养动物。