自定表面
允許在地面上鋪設自定表面，如混凝土。表面可減少行駛其上車輛的維護需求。
Official description
允許在地面上鋪設自定表面，如混凝土。表面可減少行駛其上車輛的維護需求。
Other entities of this type
- - Settlement water use
- - Ship fuel use
- - Train fuel use
- - Vehicle fuel use
- + Crop yield
- + Focus points
- + Housing capacity
- + Maintenance output
- + Rainwater yield
- + Rockets capacity
- + Solar power
- + Tree growth speed
- + Unity capacity
- + Vehicle limit
- + World mine output
- Aluminum smelting
- Amphibious vehicles
- Amphibious vehicles (H)
- Arc furnace I
- Asteroid boosters
- Crewed station
- Electronics IV
- Fireless steam locomotive
- Gas-turbine locomotive
... +179 (see sidebar for full list)