"mixing"的搜索结果

twelve channel mixing desk

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nurse was rolling the nasal vaccine sprayer between her hands gently mixing the contents

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these were the tools used by the pakistani malaria control team when they were mixing malathion powder

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malaria control worker mixing malathion spray powder without covering his exposed skin

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worker is mixing a malathion spray suspension using his uncovered hand and arm

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woman in aceh indonesia who lost her home to the tsunami practices mixing water

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homemade game of mixing and matching is one activity children enjoy

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