因为它没有液态水的密度大。

Because it's less dense than liquid water.

youdao

水的密度是空气密度的八百倍。

Water is eight hundred times as dense as air (is).

youdao

水的密度很接近。

The density of water's close to one.

youdao

冰浮于水，因为其密度小于水的密度。

Ice floats on water because the density is less than that of water.

youdao

因此，冰的密度小于水的密度，所以冰能浮在水上。

Hence ice is less dense than water, so it floats.

youdao

水星在太阳系中是密度第二大的行星，是水的密度的5.3倍。

It is the second densest planet in Solar System; 5.3 times that of water.

youdao

铝水推进系统具有能量密度高的优点，尤其适用于水下推进。

The high energy density aluminum-water power system is especially suitable for underwater propulsion.

youdao

冰的密度小于水，因此能浮在水面上。

Ice is not so dense as water and therefore it floats.

youdao

冰的密度小于水，因此能浮在水面上。

Ice is not so dense as water and therefore it floats.

youdao