Almost all marine animals use sound for all vital life functions.

几乎所有的海洋动物都是靠声音来完成所有至关重要的生活功能。

Your body needs millions of blood cells produced by bone marrow to carry out vital functions.

你的身体需要数百万个由骨髓产生的血细胞来执行重要功能。

Only here and there along each strand do you find sections that control and organize vital functions.

每一段里你发现只有部分区段在起着掌控和组织的作用。

Yet because parts of their brains that run activities such as breathing are intact, their vital functions can be sustained indefinitely.

但是，由于他们大脑里负责某些生理活动（如呼吸）的部分仍然完好，所以他们的生命机能可以被永远维持下去。

The states only vital function is protecting us from other versions of itself.

国家唯一重要的功能是保护我们免受其他版本的影响。

33.It integrates vital functions, such as circulation and respiration.

它整合了重要的功能，如循环和呼吸。

Besides producing bile, the liver has several other vital functions.

除了产生胆汁外，肝脏还具有其他几种重要功能。

Well, we would say that we need these businesses because they perform a vital economic function.

好吧，我们会说我们需要这些企业， 因为它们发挥着重要的经济功能。

The list goes on, and among these immeasurable vital functions of nature is of course its ability to absorb carbon dioxide.

清单还在继续，在这些不可估量的自然重要功能中，当然是它吸收二氧化碳的能力。

The hydraulic systems on the plane control vital functions such as steering, and manipulation of the flaps, ailerons, rudder and braking systems.

飞机上的液压系统控制着重要的功能， 例如转向，以及襟翼、副翼、方向舵和制动系统的操纵。

A gene is a segment of DNA that determines the structure of a protein, which is needed for development and growth as well as carrying out vital chemical functions in the body.

基因是决定蛋白质结构的DNA片段，蛋白质是发育和生长以及在体内发挥重要化学功能所必需的。