The Royal Navy frigate HMS Montrose is to get a new electronic 'brain 'which will help her crew defend the ship against air, surface and underwater threats.
英国海军护卫舰蒙茅斯号将获得一种新型的电子“大脑”，这将能有助于该舰对抗来自空中、海上及水下的威胁。
For another thing, the experiments suggest aragonite allows the chitons to see equally well in air or underwater, something that's probably useful as tides ebb around the mollusks.
另外，实验还显示，碳酸钙眼睛允许石鳖在水中和空气中达到相同的视力，这可能有助于它们适应潮汐变化。
Those that do tend to be insect larvae, which live on land, making their sounds into the air rather than underwater.
能够发出声音的往往是昆虫幼虫，它们生活在陆地上，在空气中制造出声音，而不是像这种蝌蚪一样在水下发出声音。
Usually just their big nostrils appeared for a gulp of air as they foraged on sea grasses or swam slowly to greener underwater pastures.
一般，它们一边用大鼻孔大口吸气，一边觅食海草，或者慢慢地游向海底更嫩绿的草场。
These curious and happy seals gather around airholes, which they use to take in air after hunting or playing underwater.
在水下捕食或者玩耍的时候，这些奇怪而又看起来很开心的海豹会聚集在冰层的破洞附近，以便探出头去喘口气。
Limited from detecting means, the threat estimation on air targets is a difficult problem to submarine underwater.
由于受探测手段的限制，水下潜艇对空中目标的威胁评估一直是研究难题。
Chagrians were truly amphibious, retaining their ability to breathe underwater while also able to function without difficulty in air.
查格里亚人是真正的两栖种族，保留着水下呼吸的能力，同时也能在岸上毫不费力的作到这一点。
The waves continued to pound violently, forcing me underwater and gasping for air.
浪头继续狂暴地怒吼，我载浮载沉，不断张口喘气。
The various types of damage to ships from underwater shock are defined in the same manner as for air blast.
水下冲击对船舶所造成的各种类型的损害与空气爆震所造成的损害相似。
Underwater there is no air for a combustion engine to consume.
在水下根本没有空气可以供内燃机使用。
The hippopotamus can survive underwater for up to 30 minutes without having to come up for air.
河马在不浮上水面换气的情况下，可以在水下度过30分钟以上。
Objective To compare the propagation speed and physical parameters between underwater blast wave and air blast wave.
目的对比研究水下冲击波和空气冲击波的传播速度和物理参数。
Objective To compare viscera injuries caused by underwater blast wave and air blast wave, and to provide some basis for their prevention and treatment.
目的对比研究水下冲击波与空气冲击波对生物内脏的损伤效应，为其防治提供一定的依据。
Then, the air threat targets, water surface targets and underwater targets were ordered to achieve the target assessments.
再对空中、水面和水下各威胁目标进行排序，从而完成其威胁评估。
The research on air-to-water sound transmission is essential for designing underwater acoustic system to detect airborne target.
设计良好的水下对空声探测系统，需要深入理解空气声波透射入水规律。
A crew of around 40 sail and maintain the ship, whilst another crew of up to 35 are in place to carry out specialised missions, such as air defence, underwater warfare and surface attacks.
大约40名船员即可完成舰船的航行和维护。除此之外，还需要35名船员来完成一些专业性任务，比如空中防御，水下战事和水面攻击。
The bonus was that you got a free air pouch22 in order to breathe underwater, basically giving you half the superpower of Aquaman23.
好处是，你可以得到免费的空气袋，帮助你在水下呼吸，这使得你基本上拥有了“潜水侠”一半的超能力。
Firstly, the ray method and normal mode method are used to calculate the acoustic field in underwater with the source in the air.
首先，用射线方法和简正波方法对空气中的声源在水下产生的声场进行了分析。
The invention uses general petrol engine, to work carrier on water and underwater, to condition the air, with long service life and high safety.
该系统工作寿命长，性能可靠，安全性、隐身性指标高，运转经济，操作简便，有显著的经济效益和社会效益。
The invention uses general petrol engine, to work carrier on water and underwater, to condition the air, with long service life and high safety.
该系统工作寿命长，性能可靠，安全性、隐身性指标高，运转经济，操作简便，有显著的经济效益和社会效益。
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