Vous avez cherché: diffuser (Anglais - Chinois (simplifié))

reed diffuser
芳香療法

industry is the main source, user and diffuser of technology.
工业是技术的主要来源、用户和传播者。

it is the motive force for applying new technologies to production and the most important source and diffuser of technological innovation.
它是在生产中使用新技术的推动力，也是技术革新的重要源泉与扩散器。

and this is an english willow air diffuser, and that's softly moving that air current through the room.
这是英国制的柳条风扇， 它缓慢地转动， 让气流在房间里流动。

d.b. is basically -- d.b. is the name of the product, basically a white noise diffuser.
d.b.基本上， d.b.是这个产品的名字，实际上 它是一个白噪音的扩散器

education and research institutions, as producers, repositories and diffusers of knowledge and technology, play a central role in such systems.
教育和研究机构，作为知识和技术的创造方、储存方和传播方，可在此种系统中发挥核心作用。