Significant difference exists between the sampling efficiency of gravity. plate and those of Andersen sampler and THK-201 sampler when they are used for sampling airborne bacterial particles.
对大气细菌粒子，用平皿沉降法分别与A·S采样器法、THK- 201采样器法测定的结果相比，有非常显著的差异。
Significant difference exists between the sampling efficiency of gravity. plate and those of Andersen sampler and THK-201 sampler when they are used for sampling airborne bacterial particles.
对大气细菌粒子，用平皿沉降法分别与A·S采样器法、THK- 201采样器法测定的结果相比，有非常显著的差异。
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