The engineer's most stressful months, he said, were in June and July, once enough rubble was cleared to let him work on the systems.

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Rescuers say they are planning to wrap up their work on Friday, and the rubble will then be shifted by bulldozers.

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They have so much painstaking work to do in removing the rubble.

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Search and rescue efforts continue to work, pulling people out of the rubble.

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Work is scarce, and mostly limited to short-term jobs clearing rubble.

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