We must do everything to rise the per unit yield.

要千方百计提高单位面积产量。

Their methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time.

他的方法不是为了试图估算特定区域的海洋中实际动物总数（活着生物的总数），而是研究单位面积中海洋生物数量的变化。

So the winner for hottest square kilometer on earth?

那么世界上单位面积最热的地方是哪？

We don't have to have arable land, and we can produce 50 times more on an area for example our seaweed farm at one hectare produces as much as 50 hectares of wheat.

不需要耕地，单位面积的产量可达50倍以上，举个例，一公顷海藻养殖场的产量，相当于50公顷麦田的产量。

700 times more germs per unit area.

每单位面积的细菌数量增加 700 倍。

That's less than one unit of surface area to service each unit of volume.

每个体积单位所分配到的表面积不足一个单位。

A square with side length one unit, called a unit square, is said to have one square unit of area and can be used to measure area.

一个边长为一单位的正方形， 称为单位正方形，其面积为一平方单位， 可以用来测量面积。

For example, right now I've arranged all these pieces to form a triangle, except it's missing two units of area in the middle.

例如， 现在把这些部分排列成了一个三角形，只是中间缺少了两单位的面积。

And then I'll show you the surface area to volume of a side when it has a side area of one.

然后会展示当一个边具有单位面积时，其表面积与体积的比值。

Intensity, for example, is the energy transported by the light per unit area, over time.

例如，强度是 光在单位面积上随时间传输的能量。

It's a graph between the dust outflow rate and the disk star formation rate per unit area.

这是一张关于尘埃流出率与单位面积盘星形成率之间关系的图表。

It's like a really, really large sheet of paper  with a uniform, positive charge per unit area.

它就像一张非常、非常大的纸，每单位面积上带有均匀的正电荷。

These measures are to find ways to increase production and income from aspects such as area, yield per unit area, and quality, and expand the grain output.

这些措施旨在从面积、单位面积产量和质量等方面寻找增加生产和收入的方法，并扩大粮食产量。

One last important measurement of delivering energy is intensity, which is the energy transported by a wave per unit time, per unit area.

最后一个重要的测量是提供能量密度，它是每单位时间、每单位面积在波中传输的能量。

After cancelling out like terms, you're left with an equation that tells you how much energy you have per unit area based on the strength of the electric field, which you can also replace with the magnetic field magnitude.

取消这些项后，您现在有了一个方程式，该方程式根据电场的强度告诉您每单位面积有多少能量，您也可以用磁场的大小代替。