patrol boat

A relatively small naval vessel designed for coastal defence.

Japanese Meaning

沿岸防衛用に設計された比較的小型の海軍艦艇

The coastal town's patrol boat returned at dawn after scanning the shoreline for smuggling boats.

沿岸の町の巡視艇は、密輸船を探して海岸線を捜索した後、夜明けに戻ってきた。

Sense（1）

A relatively small naval vessel designed for coastal defence.

patrol boats

（ plural ）