The field trial operation proves its reliability.
经过现场试运行，证实该装置可靠。
Its reasons the results of field tests and trial operation, and the research achievements relevant to resonance grounding are all expounded.
详细论述了更改的原因，现场试验和运行考验，以及与谐振接地方式相配套的研究成果。
After being trial-produced, a model machine is equipped and operated for checking in a farm cottage for sunning grains and in a building operation field, and is praised by probation people.
样机经试制，在农户平房 晒粮和建筑施工现场安装考核运作，受到试用人员好评。
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