目的：调查坑道不同通风条件下的空气真菌状况，为保障进驻人员身体健康提供依据。
Objective: to investigate mycetes in the air in tunnel in different ventilation to provide guarantee for the health of the people entered.
目的：调查坑道不同通风条件下的空气真菌状况，为保障进驻人员身体健康提供依据。
Objective: to investigate mycetes in the air in tunnel in different ventilation to provide guarantee for the health of the people entered.
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