preliminary investigation的意思|示意

Two geologists will make a preliminary investigation.

有两位地质学家将做一次初步调查.

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A preliminary investigation suggested there had been safety breach es at the mine.

初步调查表明,该煤矿存在安全漏洞.

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A preliminary investigation is carried out on the service life assessment of domestic flue gas turbine.

介绍了透平机转子的部件检验和强度分析,探讨了国产透平机的寿命评估.

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Preliminary investigation on the Chihu Lake aquatic vascular plants in Jiangxi Province.

江西赤湖水生维管束植物的初步调查.

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