But the new efforts have yet to be proved, and it would take some years to scale them up to a meaningful level.

但新举措的效果还有待证明，尚需要几年的时间将这些措施扩展至能产生切实作用的水平。

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This inference based on the records of the seasonal signal in atmospheric co 2, the surface air temperature and the satellite data have yet to be proved by field observation data of land vegetation.

这一根据大气二氧化碳浓度季节变化、陆地年平均气温和卫星遥感数据的推断，尚有待于利用对地面植被的实际观测资料予以检验。

youdao

Suspected natural gas reserves have yet to be proved, but they bear the potential to help Europe hedge against uncomfortable reliance on energy from Russian pipelines.

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Although we have not yet found a match for my mom, at least six of these people have proved to be potential matches for other people desperately needing a transplant.

CNN: My mom needs you: Nalini's story

Yet Claire Tomalin, whose studies of Mary Wolstonecraft, Nellie Ternan and Dorothea Jordan have proved her to be one of our most painstaking, distinguished and sympathetic biographers, has produced a portrait of remarkable subtlety.

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