troop movement

1. Dense forest will conceal troop movement, islands will channel ships in naval combat.
   茂密的树林将会遮住部队的移动，岛屿将会为船只在海战中形成航道。
2. Troop transport is the primary function of the helicopter, and movement of equipment and supplies is secondary.
   第一职能是负责部队的运输，其次才是设备和供给。

noun

1. movement of military units to a new location