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坑口
| Глоссарий по проходческим щитам (тоннелингу) |
トンネルの入口または出口
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Portal, английский
- A planar frame where the lateral and bending forces are transferred by moment resisting connections from the portal rafters to the columns.
- Портал
- Портал; интернет-портал
- A website that users who are assigned to an appropriate user role can use to create and manage their own virtual machines and services. portal
- An entrance to a tunnel, drift or adit in a mine.
- The entrance to an adit.
- The open end of a tunnel. usually includes a wall to retain the soil around the opening. may also include service and ventilation building.
- The entrance or exit of a tunnel.
- Entrance to a tunnel or a type of overhead line support.
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事前インシデント計画, японский
物体または資産の重要な特性を特定するための計画
ピストン効果, японский
車両の通行により生じるトンネル内の空気を押し出す力
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