鳍

The results obtained revealed that:(1) the Pacific yellowfin has larger ring-radii as well as scale size than the Indian Yellowfin;(2) the specimens from the western Indian have larger value in scale size and ring-radii than those from eastern Indian;(3) there is a significant difference in the estimated growth curves between male and female for the Pacific specimens, but not for the Indian specimens; and (4) it is convinced that there are two yellowfin groups in the Indian Ocean, viz., one concentrates in the western Indian and the other densely distributes in the waters around Sunda Islands and Banda Sea; intermingling of these two groups is supposed to be occurred around 100°E in the season of northern summer.

3李氏现象在太平洋和印度洋都很显著。(4)年轮每年形成二次，时间为2～4月及8～10月。(5)有关成长的parameters如下：太平洋K=0.386 L=174.9 t0=0.05 东印度洋 K=0.278 L=212.7 t0=-0.19 中印度洋 K=0.290 L=215.6 t0=-0.01 西印度洋 K=0.349 L=191.1 t0=0.06 (6)由钓获率的分布、体长组成和其他生物学资料及以往之结果加以综合分析，显示印度洋的黄鳍鲔可分为东、西两个族羣，一为以班达海和小巽他羣岛附近海域为中心的东方羣，另一则以西部印度洋赤道流域为中心的西方羣。此两羣在100°E附近发生混合交流。当北半球的夏天时，此混合交流的现象较为显著。

But bans in the Bahamas on the export of shark parts and commercial long-line fishing have made the islands' blue waters a veritable shark sanctuary.

但是巴哈马群岛出台了对于禁止这种鲨鱼出口和禁止商业捕捞的禁令，使这里真正成为远洋白鳍鲨的避难所。

But bans in the Bahamas on the export of shark parts and commercial long-line fishing have made the islands' blue waters a veritable shark

但是巴哈马群岛出台了对于禁止这种鲨鱼出口和禁止商业捕捞的禁令，使这里真正成为远洋白鳍鲨的避难所。

Use cont rol theory of PID to carry out the cont rol of fin stabilizer , and simulate the slope angle of ocean wave and angle of roll by Matlab software.

用 PID 控制方法实现减摇鳍的控制，并用 Matlab软件对海浪的波倾角和船舶的横摇角进行仿真。

The adipose fin has always a red margin.

脂肪的鳍始终有一个红色的保证金。

Ocean Now expedition member Adam Geiger films a blacktip reef shark, the most abundant large predator in the waters around Vostok Island.

现在海洋探险队成员亚当盖革把黑鳍礁鲨拍成电影，这最丰富的大的食肉动物在斯托克岛周围水域。

Ocean Now expedition member Adam Geiger films a blacktip reef shark, the most abundant large predator in the waters around Vostok Island.

现在海洋探险会员亚当盖格拍电影一条黑鳍礁鲨，最丰富的大型食肉动物在沃斯托克岛附近水域。

Fisheries biologist at Canada's Dalhousie University and lead scientist in this study, says: From giant

生物学家、享有该领域研究带头人声誉的兰森迈尔斯说：从印度马林鱼到蓝鳍金枪鱼，从热带

He was born with it. We call it his lucky fin.

这可是天生的我们叫它幸运鳍

Yes, that is a shark's back fin.

对，那就是鲨鱼背上的鳍。

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。