When the coast Guard spotted the vessel off the coast of Honduras, its crew sank the watercraft. They were later detained, according to a coast Guard press release.
VENT GUARD? Is a protective enclosure designed exclusively for the air release valve found in many public water supply systems.
通风口的保护外壳设计，专用于许多公用水供应系统中的空气释放阀。
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If this happens day in and day out without physical release, stress can inflict its damage by affecting the very network that is supposed to guard your health: your immune system.