明确证实 meaning in English

be unequivocally established

But it is the first to show clear evidence that mobile phone use could increase the risk of getting tumours
但是这是第一个明确证实使用行动电话会增加致癌风险的研究报告。
Trane ' s maureen lally : there are many research studies that definitely show daylight , better lighting , definitely improved test scores
莫林?劳丽：许多研究都明确证实日光及很好的照明设备能够显著提高学生的考试成绩。
See chris wallace ' s internet expos on the ufo phenomenon . he said that of the more than 1 , 000 sightings reported to him each year , more than 80 percent turn out to have earthly explanations
霍桑说他每年都会收到1 , 000多个类似景象的报道，但是其中80 %都被明确证实是地球上的一些飞行物或自然现象造成的。