They inhaled toxic dust and vapours as the material seethed in primitive cauldrons to extract the mercury.

当原材料被放入原始的煮锅烧沸以提炼水银时他们吸入有毒的粉尘和蒸汽。

youdao

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。

youdao

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。

youdao