These include lithium-sulphur and lithium-silicon, both of which have the potential to increase energy densities.

其中包括锂-硫和锂-硅，这两种物质都有可能增加能量密度。

Long-range airplanes, for instance, are still going to need the energy density of a liquid fuel.

例如，远程型飞机仍将需极高密度的液体燃料。

And we so far have no idea why our universe has the mass energy density it does.

到目前为止，我们还不知道为什么我们的宇宙有着恰到好处的质量能量密度。

" It's cheap, it's high energy density, so it seems to be a no-brainer, " Ehmes said.

“它价格便宜，而且能量密度高，所以看起来很简单”。

In fact, she says the energy density of batteries in use today can still be doubled or tripled.

她说，实际上，如今所使用电池的能量密度“仍可以翻倍或翻三倍”。

He said the company aims to remove in-demand metals such as nickel and cobalt from its batteries, without losing energy density.

他说，该公司的目标是在不放弃能量密度的情况下，从电池中去除镍和钴等需求大的金属。

This, too, demands a technological leap towards new materials, higher energy density, and better storage.

这也需要在新材料、更高能量密度和更好的存储方面实现技术飞跃。

Lipo batteries have a high energy density, but a low weight and they're very robust.

锂聚合物电池具有高能量密度，但重量轻， 而且非常坚固。

That’s called the kinetic energy density, and it’s the second term of Bernoulli’s equation.

这就是所谓的动能密度， 它是伯努利方程的第二项。

And two, is you get a battery roughly double the energy density of conventional batteries, which means that you get twice as many miles.

第二点就是你得到的电池的电容量大约是传统电池的两倍，这意味着你得到了两倍的里程数。

These equations give the energy density of an EM wave at any point during its propagation.

这些方程给出了电磁波在传播过程中任意点的波能量密度。

But chemicals can hold a lot of energy, so batteries have high energy density (the amount of energy they can contain, again per unit weight).

但是化学物质可以储存很多能量，所以电池有很高的能量密度（每单位重量可以包含的能量）。

Sila's battery debut is starting small with a Whoop fitness tracker. This allows for, in our case, about 20% extra energy density in our battery.

Sila的电池首次亮相于Whoop小型运动手环中。在这个产品里，我们电池中的能量密度增加了约20%。

The batteries would have to improve about a factor of 10 in terms of their energy density in order to be useful for planes crossing oceans.

电池的能量密度必须提高大约 10 倍才能用于越洋飞机。

Sila Nano's product will boost the energy density of Li-ion batteries by between 20% and 40%; Group14's will increase it by as much as 50%.

Sila Nano 的产品将使锂离子电池的能量密度提高 20% 至 40%；Group14 的产品将使锂离子电池的能量密度提高 50%。

That's called the kinetic energy density, and it's the second term of Bernoulli's equation.

这称为动能密度， 它是伯努利方程的第二项。

This lets you come up with the energy density terms that encapsulate the energy in both fields, with fewer variables.

这使您可以提出能量密度术语，将能量封装在两个域中，变量更少。

You max out the energy density, and you plug it in the rocket equation, and you have to abide by what it says.

你把能量密度最大化， 然后把它代入火箭方程式，你必须遵守它所说的。

Which means that the kinetic energy density for the water at the top of the barrel is zero.

这意味着动能密度 桶顶部的水为零。

This does not happen in the normal expansion of the universe in which the matter energy density goes down as the universe gets bigger.

这不会发生在正常的宇宙膨胀中，在正常膨胀中物质能量密度随着宇宙变大而下降。