The level of formaldehyde gas in her kitchen was twice the maximum allowed by federal standards for chemical workers.

她厨房的甲醛气体含量是联邦为化工工人设立的最大值标准的两倍。

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The absorption of modify hide glue on formaldehyde gas was researched.

初步探讨了改性皮胶对甲醛废气的吸附性能。

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The results show that the expanded graphite has good absorptive effect to formaldehyde gas.

结果表明，膨胀石墨对甲醛废气具有较好的吸附效果。

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The sources of these toxins and poisons are often easy to isolate: a leaking roof can cause mold, houses built before 1978 may have lead paint and plywood can off-gas formaldehyde.

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