They are patrol boats , mine - layers , mine - sweepers and so on 有巡逻艇、布雷舰、扫雷舰、等等。
2.
In naval mine - sweeping , two forms of the progressive sequence mine - sweeping technique can be adopted : from the one side of the channel to the other and from the center of the channel outward 摘要扫雷舰艇进行非接触平行搜扫时可以采取边缘渐进和中心航道两种清扫模式。
3.
The theory of markov chains was fruitfully applied to estimating the expected mine - sweeper casualties of the two forms of the progressive sequence sweeping technique 为了比较这2种清扫模式下扫雷艇期望损失的大小，应用马尔可夫过程理论对这两种清扫模式的扫雷舰艇期望损失进行了一定条件下的分析。
