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Thymidine
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Optical activity
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Lactose
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Macromolecule
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Condom
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Hyperaluminous
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Shuttering panel
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Pineal gland
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Haüy indices
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Artificial insemination
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Magnetic field
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Map projection
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CSA
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Mira Ceti
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Rotterdam Convention
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Pneumocyte
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Viscoplasticity
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Conception
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Empress tree
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Hour circle of a direction
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Blende
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EEG
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Black smoke
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CNT
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Phytoplankton
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Retinoid
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Composite material
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Jet Propulsion Laboratory
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Greisen
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Vertebral column
Quartzite
Quartzite is a sedimentary rock composed of quartz grains cemented by neoformed quartz, conferring great hardness. Metamorphically, quartzes can result from the recrystallizing of sandstone or siliceous rocks initially composed of amorphous silica and chalcedony.
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