扳手是坚固的且是为商业用户设计的，同时它也一件精密量测仪器也应当将它当作一个精密仪器看待。
Tool is rugged and designed for shop use, but is also a precision measuring instrument and should be treated as such.
通过精密的臭氧监测系统，可准确的控制及量测臭氧的浓度。
The real ozone concentration is controlled and measured accurately by means of precise detecting system.
通过精密的臭氧监测系统，可准确的控制及量测臭氧的浓度。
The real ozone concentration is controlled and measured accurately by means of precise detecting system.
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