鳍

Soft-finned mainly freshwater fishes typically having toothless jaws and ''.

软鳍的主要是淡水的鱼，特征是生有无牙的咽喉和圆盘状的鱼鳞。

Soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales.

软鳍的主要是淡水的鱼，特征是生有无牙的咽喉和圆盘状的鱼鳞。

A soft-finned fish of the order Cypriniformes.

硬骨鱼纲有软鳍的鱼。

Large family of small soft-finned fishes; killifishes; flagfishes; swordtails; guppies.

小型软鳍鱼类的一个大科；淡水鳉科小鱼；花尾汤鲤；剑尾蝽；古比鱼。

More than 50 new species have been discovered off the coast of Indonesia, including small, slender-bodied sharks that "walk" with their fins along coral reefs, researchers announced today.

科研人员9月18日宣布说，50多个新海洋物种日前在印尼沿海水域被发现，这其中包括一种小型的、体态瘦长的鲨鱼，这种鲨鱼能够利用它们的鳍在珊瑚礁上行走。

Walking" Sharks Among50 New Species Found in Indonesia Reefs John Roach for National Geographic News More than50 new species have been discovered off the coast of Indonesia, including small, slender-bodied sharks that" walk with their fins along coral reefs, researchers announced today.

科研人员9月18日宣布说，50多个新海洋物种日前在印尼沿海水域被发现，这其中包括一种小型的、态瘦长的鲨鱼，这种鲨鱼能够利用它们的鳍在珊瑚礁上行走。

Short-legged flightless birds of cold southern esp.

寒冷的南部特别是南极地区的短腿并不能飞翔的鸟，蹼足、鳍状翼。

Natacha Aguilar of La Laguna University on the Spanish Canary Islands and her colleagues fitted special suction-cupped electronic tags to 23 short-finned pilot whales near Tenerife. The tags were designed by Mark Johnson of the Woods Hole Oceanographic Institution to record whale sounds while monitoring both their depth and position.

西班牙加那利群岛拉古纳大学的娜塔查安吉拉和她的同事们给特纳里夫附近的23条短鳍领航鲸安上特别的吸盘式电子标签，这种标签由伍兹霍尔海洋研究所的马克约翰逊设计，为了在监听它们的深度和位置时记录其声波。

Reducing ship roll motion is one of the important tasks of ship motion control.

船舶减摇鳍是船舶与海洋工程中的一种重要系统，目前已在多种船舶中广泛应用。

Widely distributed shallow-water shark with fins seemingly dipped in ink .

广布于浅水的鲨鱼，其鳍好象是被墨水染黑了。

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。