In the Arctic regions where there i

In the Arctic regions where there is permanently frozen ground -- "permafrost" --
work is usually confined to the winter months. In winter movement across the frozen and snow-covered tundra is easier than in summer and causes negligible damage to the surface. In summer the top foot or so of tundra thaws, hampering movement and permitting considerable damage to be done by virtue of the vehicles sinking in the mud and disturbing the tundra cover. All equipment is mounted on tracked vehicles and the trailer camp is either track-or skid-mounted. The camp is moved every few days to keep up with the work and reduce travelling over the frozen tundra to a minimum. All supplies are brought to the party by air and a helicopter is used for personnel movement in the field. Working conditions are very severe with temperatures down to -40°F not uncommon.

結果 (中文) 1:

那里是北极地区永久冻土 - “永久冻土层” -
工作通常局限于冬季的几个月。在冬季运动跨越冷冻和冰雪覆盖的冻土带比夏季更容易，并导致表面损伤，可以忽略不计。在夏天或顶脚苔原解冻，阻碍运动和允许凭借在泥下沉的车辆和扰乱苔原盖做相当大的损害。所有设备都安装在履带式车辆和拖车营地或者是轨道或撬装。移动营每隔几天，跟上的工作和降低行驶在冰冻苔原到最低限度。所有物资被带到空气党和一架直升机被用于在该领域的人员流动。工作条件是非常严重的温度下降到-40°F并不少见。

結果 (中文) 2:

在北极地区，那里的永久冻土层——“冻土”——
工作通常局限于冬季。冬季运动在冰天雪地的苔原是比夏天更容易和表面造成的损害可以忽略不计。夏季冻原或顶脚解冻，阻碍运动，允许相当大的损害是由车辆在泥泞和令人不安的苔原覆盖了下沉的美德。所有的设备安装在履带式车辆和拖车营地是轨道或撬装。营地的移动每隔几天就要跟上工作和减少旅行在冻土地带到最小。所有供应带来的空气和一架直升机用于现场人员运动党。工作环境温度下降到40°F并不非常严重。

結果 (中文) 3:

北极地区哪里有永久冻土 — —"冻土"— —
工作通常仅限于在冬季。冬季运动跨的冰冻和大雪覆盖的冻原比更容易在夏天和原因可以忽略不计受损的表面。在夏天顶尖脚或这样的冻土带融化，妨碍运动和允许相当大的破坏要做而沉没在泥浆和令人不安的冻土带盖的车辆。所有的设备装在履带车辆和拖车营地是任一轨道-或橇装式。营地移动每隔几天要跟上工作和减少到最低在冻土行驶。所有用品都提请党的空气，一架直升机用于在外地的人员行动。工作条件是非常严重的气温降至-40 ° F 并不罕见。