When an elephant gets a whiff of something interesting, it sniffs the air with its trunk raised up like a submarine periscope.
大象闻到一些感兴趣的味道，它就闻着那个味道翘起鼻子就像潜艇望远镜。
To compensate, they plan to install a submarine periscope at the top of the vertical steel ladder leading to the original access hatch.
作为补偿，他们打算在竖直的钢梯顶部安置一个潜水艇的潜望镜，这个钢梯是通往原先过道出口的。
The paper introduces the configuration of system and the work principle of the closed and opened loop control in the pitching of collimation prism of the submarine periscope.
介绍潜艇潜望镜瞄准棱镜俯仰的闭环控制与开环控制的组成及其工作原理。
Submarines are most vulnerable to detection when the submarine commander USES a periscope to assess the situation on the surface.
当潜艇指挥官使用潜望镜对海面态势进行评估的时候最容易被探测到也最容易被攻击。
The captain of the submarine has got this periscope thing.
那个潜艇艇长有个类似于潜望镜之类的东西。
Submarine motion at the periscope depth, will suffer the interference that comes from waves.
潜艇在潜望镜深度航行时，会受到来自波浪的干扰力。
In the middle of the Atlantic ocean, with a salinity of 3.2 %, a VLF signal will penetrate down to a depth of 10-20 meter, barely periscope-depth for a modern large scale submarine.
在大西洋中部，海水的盐度为3.2%，甚低频无线电信号可以穿透到海面下10 ~20米的深度，几乎就是现代大型潜艇的潜望镜深度。
In the middle of the Atlantic ocean, with a salinity of 3.2 %, a VLF signal will penetrate down to a depth of 10-20 meter, barely periscope-depth for a modern large scale submarine.
在大西洋中部，海水的盐度为3.2%，甚低频无线电信号可以穿透到海面下10 ~20米的深度，几乎就是现代大型潜艇的潜望镜深度。
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