Examlex
Compare the brightness of the faintest objects you can see with your naked eye,which has an aperture of approximately 1 cm,an integration time of 100 ms,and a quantum efficiency of 10 percent,to the faintest objects you can see in a CCD image taken with a 1-m telescope.Assume the CCD has a quantum efficiency of 80 percent,and the image has an integration time of 10 minutes.
Invert
To turn upside down or inside out; in mathematics, it refers to finding the reciprocal of a number.
Collection tubes
Containers used for the collection and storage of samples such as blood, urine, or saliva, for laboratory analysis.
Glucose tolerance test
A medical test measuring the body's ability to metabolize glucose, used to diagnose diabetes.
High-carbohydrate diet
A diet that includes a higher proportion of carbohydrate sources relative to fats and proteins.
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