covering surface

基本解释

As it cooled, an ocean of magma covering its surface began to crystallize.
当星球冷却后，覆盖其表面的岩浆海洋开始定形。
Initially, the plan to power the robot involved covering its surface with solar cells that would charge a lithium polymer battery inside.
最初计划用覆盖在机器人表面的太阳能电池板给内部的锂聚合物电电池充电来给机器人供电。
This is the biggest energy-storage system in the world, with two reservoirs covering 820 surface acres can store up to 30 GWh storage capacity.
这个世界上最大的蓄能系统，拥有两座水库，跨域820公顷，储能达30千兆瓦时。

This return to normalcy occurred just four months after the surgical procedure, with newly grown cartilage fully covering the joint surface.

Much of that time he devoted to rubbing his skin with alcohol and covering every available surface with white tissues.
ECONOMIST: Strange tycoons
Russia will continue to have the sad distinction of covering 12% of the earth's surface, while attracting only 0.3% of its tourists.
ECONOMIST: Russian tourism
After analysing an unusual but temporary increase in Titan's brightness, Dr Griffith concluded that the most likely explanation was the presence of a thick, reflective cloud, covering roughly 9% of the part of Titan's surface then visible from earth.
ECONOMIST: Comparative meteorology