... 监测 monitoring 多层采样器 multi-level sampler 复合钻孔 multiple boreholes ...
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Objective To prepare a new multi functional sampler, which can better reflect the level of dust and chemical substance inhaled by exposed human bodies.
目的研制一种多用途，更能反映人体实际接触或吸入尘毒水平的采样仪。
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