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1·The dock can operate in isolated sheltered waters due to its independent electrical system, high pressure water system and compressed air system.

本坞作业于孤立的遮蔽水域，具有自给的电力、高压水及压缩空气等动力源。

2·They reconstructed the height of the hills and looked for the best places for human habitation: Areas close to water that would have been sheltered from the harsh winter winds.

他们恢复了山脉的高度，寻找最适合人类居住的地方：那里要靠近水源、能够躲避冬天刺骨寒风。