·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
youdao
应用推荐
模块上移
模块下移
不移动