" The Harkonnens will have a covering force over this area, " she said.
“Harkonnens 将在该地区拥有掩护力量，”她说。
英语百科
Covering force
A covering force is a military force tasked with operating in conjunction with a larger force, with the role of providing a strong protective outpost line (including operating in advance of the main force), searching for and attacking enemy forces or defending the main force from attack.