水域

But do be aware that you are dipping your blog into sometimes treacherous waters.

但是注意，有时你也会把你的博客带入到充满危险的水域。

We have made investigations for their topographical distribution, aquatic environment and law of seasonal fluctuation.

我们对其地形分布、水域环境和季节消长规律作了调查。

And then dives thousands of feet straight down into the dark.

然后他在漆黑的水域下潜了几千英尺。

Smooth dogfish of Pacific and Indian oceans and Red Sea having white-tipped dorsal and ''.

太平洋、印度洋和红海水域的平滑狗鲨，长着白尖的脊背和尾鳍。

Smooth dogfish of Pacific and Indian oceans and Red Sea having white-tipped dorsal and caudal fins.

太平洋、印度洋和红海水域的平滑狗鲨，长着白尖的脊背和尾鳍。

Dogfish :Any of various small sharks, chiefly of the family Squalidae, of Atlantic and Pacific coastal waters.Also called grayfish

狗鲨：一种小型鲨鱼，主要指大西洋和太平洋沿岸水域的棘鲨科鲨鱼也作 grayfish

Almost two decades on, the cod show no sign of recovery, perhaps because new predators, such as dogfish, now dominate the waters.

也许是因为狗鲨一类新的掠食者如今统治了这片水域。

Smooth dogfish of European coastal waters.

欧洲海岸水域体表光滑的狗鲨。

Species targeted this way in UK waters include the shortfin mako, blue, smooth hammerheads and thresher sharks, as well as species such as Portuguese dogfish and gulper sharks.

在英国水域上，受到如此待遇的目标群体包括短鳍灰鲭鲨、蓝鲸、锤头鲨、长尾鲨，以及像葡萄牙角鲨和刺鲨。

Dorsalis, of coastal waters of southern California and Mexico.

尾鲽带黄色的鱼一种鰤属的大型的供捕钓的食用鱼，有黄色或微黄的尾巴，如南加利福尼亚和墨西哥沿海水域中的长背鰤

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。