Last Updated:2025/11/29

The engineers inspected the shafthead frames before the rainy season to ensure they were structurally sound.

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The engineers inspected the shafthead frames before the rainy season to ensure they were structurally sound.

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技術者たちは雨季の前に竪坑ヘッドフレームを点検し、構造的に問題がないか確かめた。

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