Objective To evaluate purification efficacy of electronic air cleaner.

目的了解电子空气净化机净化空气效果。

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In electronic industry, they serve as the surface treatment of wax matrix and metal cleaner. Besides, they can be used as finish milling fluid for optical instrument.

在电子工业上可用于蜡模的表面处理和作为金属清洗剂，此外可作为光学仪器的精磨液等。

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Objective To estimate the efficiency of an electronic dust-accumulated air cleaner for air purification.

目的了解某型电子集尘式空气净化机对密闭空调环境空气的净化效果。

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Shark floor-cleaning devices, owned by Euro-Pro Operating LLC, overhauled the design of its electronic Sonic Duo floor cleaner, set to launch in April, after tests revealed how strenuously some people used it.

WSJ: Cleaning Products Get Stronger Even Though Scrubbers Insist On Using Elbow Grease

First, not only is distributed generation cleaner and more efficient, but to make it work requires elaborate electronic-control systems that will result in the commercialisation of the electronic home and business.

ECONOMIST: Letters