So suburb-ringed cities with low overall densities are much less efficient than those that are tightly-packed.

所以，总体密度低的郊区环线城市的效率要比那些紧密的城市低很多。

It was also very low density, just what you'd expect for a loosely bound rock pile.

它的密度也很低，正如你所想象的的松散的岩石堆。

They discovered that patients with depression had a lower density of synapses than healthy people of the same age.

他们发现，抑郁症患者的突触密度低于同龄的健康人群。

But, despite their length, tails are incredibly low density, as low as a few hundred atoms per cubic centimeter.

但是，尽管尾巴很长，它的密度却低得令人难以置信，低到每立方厘米只有几百个原子。

They live in low densities, they're extremely well camouflaged, and when they move, they stay low to the ground.

它们数量稀少，又极善于伪装，在移动时，身体会尽量贴近地面。

First, there's Looser zones, which are bands of low bone density that form on the surface of the bone.

首先，会有Looser区，即在骨表面形成的低密度带。 小编注：Looser区以瑞士外科医师Emil Looser命名。

Wyoming has the lowest population overall, but Alaska, which is by far, the largest state has the lowest population density.

蒙大拿州总体上人口最少，但阿拉斯加是远远最大的州，人口密度最低。

These felines live at very low densities, and between two potential mates may be dozens of kilometers of harsh terrain.

这些猫类生物的密度非常低，可能几十公里的恶劣地形才能遇到一个潜在的伴侣。

Whereas this is much squishier, this is low density polyethylene.

虽然它更柔软， 但它是低密度聚乙烯。

Small city, we have low density, make the design more romantic.

小城市，我们低密度，让设计更浪漫。