鳍条

A world without professors or specialists or house–keepers with the profiles of policemen, a world which one could slice with one's thought as a fish slices the water with his fin, grazing the stems of the water–lilies, hanging suspended over nests of white sea eggs...How peaceful it is drown here, rooted in the centre of the world and gazing up through the grey waters, with their sudden gleams of light, and their reflections—if it were not for Whitaker's Almanack—if it were not for the Table of Precedency!

这个世界里没有教授，没有专家，没有警察面孔的管家，在这里人们可以像鱼儿用鳍翅划开水面一般，用自己的思想划开世界，轻轻地掠过荷花的梗条，在装满白色海鸟卵的鸟窠上空盘旋……在世界的中心扎下根，透过灰黯的海水和水里瞬间的闪光以及倒影向上看去，这里是多么宁静啊——假如没有惠特克年鉴——假如没有尊卑序列表！

Either of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling.

依附在船底外的两条纵长的鳍板之一；减少船的摇晃。

Those who had caught sharks had taken them to the shark factory on the other side of the cove where they were hoisted on a block and tackle, their livers removed, their fins cut off and their hides skinned out and their flesh cut into strips for salting.

而那些捕到鲨鱼的渔夫，也已经把那些鲨鱼送到在小海湾另一边的鲨鱼工厂去了，在那儿鲨鱼被滑轮垂吊起来，然后被取下肝，割掉鳍，剥下皮，肉也被割成条状准备用盐来腌。

He did not see the fin of the other.

他没有看见另外一条的鳍。

The boy had given him two fresh small tunas, or albacores, which hung on the two deepest lines like plummets and, on the other, he had a big blue runner and a yellow jack that had been used before; but they were in good condition still and had the excellent sardines to give them scent and attractiveness.

孩子给了他两条新鲜的小金枪鱼，或者叫做长鳍金枪鱼，它们正象铅垂般挂在那两根最深的钓索上，在另外两根上，他挂上了一条蓝色大鲹鱼和一条黄色金银鱼，它们已被使用过，但依然完好，而且还有出色的沙丁鱼给它们添上香味和吸引力。

The boy had given him two fresh small tunas, or albacores, which hung on the two deepest lines like plummets and, on the others, he had a big blue runner and a yellow jack that had been used before; but they were in good condition still and had the excell ent sardines to give them scent and attractiveness.

孩子给了他两条新鲜的小金枪鱼，或者叫做长鳍金枪鱼，它们正象铅垂般挂在那两根最深的钓索上，在另外两根上，他挂上了一条蓝色大鲹鱼和一条黄色金银鱼，它们已被使用过，但依然完好，而且还有出色的沙丁鱼给它们添上香味和吸引力。

The RAPD results illustrate that the phylogenetic relationship betweenBothriocephalid tapeworm parasitic in Grass carpCtenopharyngodon idellus(C.et V.and Common carp(Cyprinus carpio L.)from different regions ofChina is infraspecific with noticeable variance bwtween them.Thephylogenetic trees based on the 3 sequences analyses above are constructed,which show the following relationships:Bothriocephalid tapeworms fromGrass carp,Common carp and Luciobrama are found to be monophyletic,and are very close to Bothriocephalus opsariichthydis,but are divergent toanother monophyletic group comprising Bothriocephalid tapeworms fromZacco,Hemiculter and Leuciscus.On the basis of phylogenetic reconstruction,autapomorphic species conceptis used in species delimitation suitablefor determining four species in the present study:B.acheilognathi,B.opsariichthydis,and two other bothriocephalids parasitic respectively inHemiculter and Leuciscus.It is also deduced that the differentiation time ofBothriocephalid tapeworms parasitic in cyprinids is earlier than that of theirhosts,and the most recent specification happened about one million yearsago.Key words Bothriocephalid tapeworm Molecular Systematics

具体成果有：通过RAPD分析探明了我国不同地理分布的草、鲤鱼头槽绦虫的亲缘关系属于种下水平，并存在较高变异；通过基因合并分析重建头槽绦虫的系统发育关系，表明草鱼、鲤鱼及鯮鱼头槽绦虫是单系群，它们与马口鱼头槽绦虫亲缘关系较近，而与〓条、宽鳍鱲及雅罗鱼头槽绦虫构成的另一单系群亲缘关系较远；在此基础上，提出符合头槽绦虫种的界定的独征物种概念，据此确定鲤科鱼类寄生头槽绦虫的四个种：鱊头槽绦虫，马口鱼头槽绦虫，以及另两种分别寄生于〓条和雅罗鱼的头槽绦虫：根据上述研究推断鲤科鱼类寄生头槽绦虫的分化年代早于其宿主，最近的一次物种形成距今约一百万年左右。

The boy had given him two fresh small tunas, or albacores, which hung on the two deepest lines like plummets and, on the others, he had a big blue runner and a yellow jack that had been used before; but they were in good condition still and had the excellent sardines to give them scent and attractiveness.

孩子给了他两条新鲜的小金枪鱼，或者叫做长鳍金枪鱼，它们正像铅垂般挂在那两根最深的钓索上，在另外两根上，他挂上了一条蓝色大鲹鱼和一条黄色金银鱼，它们已被使用过，但依然完好，而且还有出色的沙丁鱼给它们添上香味和吸引力。

I was into fins. I chose a large-finned one, pushing its shape each generation toward increasingly ornate, heavy-duty fins.

我选择了一条大鳍的鱼，促使它的形状每一代都朝着越来越华丽、结实耐用的鳍进化。

I hauled up two fish which I kept: a plump yellow fish spotted in green with a thin dorsal fin and an overbite and a puny blue torpedo-shaped guy with a Chinese junk sail of a top fin.

我抓到两条鱼并把它们拖了上来：一条胖胖的有黄色斑点的黄色的鱼，有一条薄薄的背鳍和一个天包地的牙，另一条弱不禁风的蓝色鱼雷形的家伙在顶鳍上长着中国式帆。

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。