Velocity and salinity(or density) differences between the wake area and non-wake area of a surface ship may be measured with an electric conductivity probe.

在舰船尾流区与非尾流区之间存在显著的速度差和盐度（或密度）差，利用电导率探头可获得对应于这些差别的尾流电导率信号。

youdao

Rainforests make up only a small part of the Earth's surface, about six percent, but there are more kinds of trees than any other area in the whole world.

热带雨林只占地表的一小部分，大约是6%，但它的树木种类比世界上任何其他地区都多。

youdao

One consequence of dividing a substance into nanoparticles is that the surface area of the material greatly expands.

将物质制为纳米粒子的结果之一是材料的表面积极大地扩展了。

youdao

With such a vehicle, astronauts could explore a much larger area of the moon's surface.

VOA: special.2009.07.29

This would depend on the total surface area of roofs in a city.

VOA: special.2010.03.02

It has a surface area of almost twenty thousand square kilometers.

VOA: special.2009.08.19