| 摘要 |
The present invention is a centrifuge essentially comprised of a rotor and a transparent cover which can be fixed to the rotor. The cover is provided with a plurality of spaced concentration lines each extending around the cover and a plurality of different graduated scales extending radially from the center of the cover across the concentration lines at spaced angular intervals. The rotor and the cover also have opposing snap lock elements at a central portion of the rotor and the cover.
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