high density and sticky material
high density and sticky material
高密度和粘性材料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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First according to the main factors affected to the inhaled volume efficiency, an inhaled volume efficiency measurement and test device of high density sticky material was developed.
首先针对影响吸入容积效率的主要因素，研制了一种高浓度黏稠物料吸入容积效率测试装置。
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