five test tubes with blue liquid and spheres red rack against gradient background |
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| navigate by keyword : test tubes laboratory science experiment chemicals liquid blue pink gradient background research medical analysis technology glass rack spheres clear dark scientific experimentation fluid testing investigation sample analytical chemistry biology medicine healthcare researcher equipment method data discovery innovation tools lab experimental tube |
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| Five test tubes with varying liquid levels, held by a red rack against a blue and pink gradient background. Clear liquid with small, dark blue spheres at the bottom of each tube |
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