patrol ship meaning in English

巡逻船
巡逻舰

Patrol ships monitored the noise made by submarines in the vicinity
巡逻船只监测附近潜水艇所发出的声音。
A coast guard spokesman said japanese patrol ships first warned the vessel to steer clear of the islands in the east china sea friday and then sprayed it with water
日本海岸警卫队一位发言人说，日本巡逻艇星期五先是警告这艘船只不要进入东海的这片岛屿，后来又向这艘船只喷水。
Abstract : the course - keeping ability of a naval patrol ship in following waves is analyzed by means of a practical approach consisting of semi - captive model test , semi - empiric numeric modeling , and numerical simulation . the assessment result in the form of stability border can then be applied for comparative study of different design concepts and as well for development of operation guideline
文摘:本文用半约束模型试验技术、半经验数值模型和数值模拟实用方法分析了一艘巡逻艇在随浪中的航向保持能力.并给出了以稳性界限形式表示的评估结果,它可适用于不同设计概念的比较研究以及工作指南的开发