• 适量乳浊液制成试液,注入石墨炉扣除背景吸收石墨原子吸收光谱快速测定

    The amounts of cadmium and lead in the samples were determined by atomic absorption spectrometry with the deuterium lamp for the deduction of background absorption.

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  • 以往经常用自备柴油发电机组蓄电池、干电池电池应急作为应急备用电源

    Traditionally, diesel oil-based generators, storage battery, dry battery and emergency lighting equipped Ni-Cd battery are always used as standby emergency power supply.

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  • 以往经常用自备柴油发电机组蓄电池、干电池电池应急作为应急备用电源

    Traditionally, diesel oil-based generators, storage battery, dry battery and emergency lighting equipped Ni-Cd battery are always used as standby emergency power supply.

    youdao

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