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Past due medical bill for lab work. Bill is from the United States. - See lightbox for more
Periodic system. Closeup of some elements
Professor teaching on blackboard
A kindergarten progress report card from the 1987 - 1988 school year. Reading readiness.
A safety engineer is using pen to rating the health risk assessment level of chemical hazardous material in the paperwork form. Industrial safety working scene, close-up and selecitve focus.
Simple yellow triangular surface with binary computer data and hexagon pattern. Conceptual design in the domain of data, virtual reality, computing and technology.
Thulium, Ytterbium, Lutetium on the periodic table of the elements on black blackground,history of chemical elements, represents the atomic number and symbol.,3d rendering
blue bubble with h2 text
Close up a dilution ratio label of concentrated liquid chemicals on plastic bottles, human hand holding a plastic bottles for liquid chemicals.
printout on a contraction monitor in a delivery room
Medical bill for a CT scan marked past due. Includes medical codes and drug charges. - See lightbox for more
Love At First Sale
Warning symbol of corrosive material at the acid container
Europe city break. Local coffee shop in Portugal.
Alertness about dangerous PFASS per - and polyfluoroalkyl substances used in products and materials due to their enhanced water-resistant properties
Instructions for using a sleeping mattress
geometry drawing on page of old yellow book as background, algebra book as background
printout of data from a seismic test for an oil well
Fresh green tea in its packing
Technetium (chemical symbol Tc) is a silver-gray, radioactive metal. It occurs naturally in very small amounts in the earth's crust, but is primarily man-made. Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions.
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Stop dangerous PFAS per-and polyfluoroalkyl substances used in products and materials due to their enhanced water-resistant properties - Concept with hand erasing
Pharmacist's instruction label on a bottle of antibiotics, which can be inferred from the dosage.
Photo of health checkup results
A magnifying glass gives a close up look at the nutritional facts on boxes of cereal.
Close up of a senior woman hand medical history questionnaire
Healthy living shopping receipt. Isolated on white
capillary columns of various lengths for gas chromatographic analysis and chromatogram samples. equipment for analytical chemistry in the laboratory. close-up, selective focus
Chalk painting on blackboard
Free Images: "bestof:TetraMan.gif en TetraMan Own Pktrisacch 2009-04-13 Check categories 2009 June 12 en wikipedia Chemical_glycosylation Chemistry 2 Carbohydrates Chemical"
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