Taylor: Mass can only be detected by special construction units, and using a HUD (Heads-Up Display) directs the player to build a sophisticated mine structure at the designated location.

物质只能被特定的工程单位探测到，并使用一个HUD指导玩家在标记的地点建造复杂的矿井结构。

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Another is a Heads Up Display (HUD).

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This intuitive interface provides the driver with complete control while keeping his eyes safely above the cowl plane, using a windshield heads-up display (HUD) for minimal driving distraction.

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