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。

But it often fails to predict the changes that happen as a crowd's density increases and its movement becomes chaotic.

不过当涉及到群体的密度增加，运行变得混乱时，对于预测发生的变化往往不能奏效。

And that’s particularly surprising given increased population density and more travel between population centers.

考虑到人口密度增加和人口中心之间的旅行增加，这尤其令人惊讶。

When the crew of a submarine wants to dive, they fill the ballast tanks with water, increasing the density of the sub.

当潜艇上的船员想要潜入水时，他们就往压载舱里注水，增加潜艇的密度。

Even increased density air has no effect upon its rate of travelling; it merely augments its intensity.

即使空气密度增加也不会影响其传播速度；它只是增强了它的强度。

They discovered that pregnant bears were able to increase the density of their bones before they started to build their dens.

他们发现怀孕的熊能够在开始建造巢穴之前增加骨骼的密度。

It also proved challenging to increase the density of the memory, packing waves closer together meant they were more easily mixed up.

事实证明，增加内存密度也具有挑战性，将波打包得更近意味着它们更容易混淆。

The second way is to increase the density of the charged particles, and we can do this by looping the wire into a coil.

第二种方法是增加带电粒子的密度，我们可以通过将电线绕成线圈来实现。

But just as one town cannot ensure that the entire region maintains adequate green space while increasing density, it cannot force neighboring towns to work together to find the right balance.

但是，正如一个城镇无法在增加密度的同时确保整个地区拥有足够的绿化空间一样，这个城镇也不能迫使邻近城镇共同努力，找到合适的平衡点。

This in turn means it takes longer for a local pileup to move out of a section of the road, increasing vehicle density even more, which eventually adds up to stop-and-go traffic.

这反过来意味着需要更长的时间，才能让局部的一队车辆通过某段道路， 更进一步增加了车流密度，最终导致了停停走走的交通。

As he continued falling into thicker atmosphere, the increasing air density reduced his terminal velocity and by two and a half kilometers above sea level, he had slowed to 200 kilometers per hour, at which point he opened his parachute.

当他继续坠入更厚的大气层时，不断增加的空气密度降低了他的终端速度， 在海拔两公里半的地方，他的速度减慢至每小时 200 公里，此时他打开了降落伞。