patrol guard

基本解释

It will mainly conduct such missions as patrol, guard, escort, anti-submarine warfare and maritime combat after its commissioning.
該艦入列後，將主要擔負巡邏警戒、護漁護航、反潛作戰、對海作戰等使命任務。
eng.chinamil.com.cn
Philippine officials say a coast guard patrol spotted the Chinese fishing Saturday near the island town of Balabac, in southern Palawan.
菲律賓官員說，海岸警衛隊的一支巡邏隊星期六發現這些中國人正在巴拉望南部巴拉巴尅島鎮附近捕魚。
ept-cn.com
Worn as a disguise, this will allow unhindered movement around the camp, provided the wearer Is not seen to be acting suspiciously. It will not fool any Germans above the rank of Patrol Guard.
行進，如果穿戴者沒有引起別人的疑心，就可以騙過所有等級在巡邏警衛之上的德國人。

In September, a Chinese trawler rammed two Japanese coast guard patrol boats in the Senkakus, stoking Chinese bluster when the captain justly was arrested.
CENTERFORSECURITYPOLICY: Center For Security Policy
And we have small Coast Guard patrol boats that can actually do scouting, work with the vessels of opportunity, to identify the small patches of oil and deal with it there.
WHITEHOUSE: Daily Press Briefing