| CRD | carbohydrate-recognition domain; chronic renal disease; chronic respiratory disease; child restraint... |
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| CRL | cell repository line; Certified Record Librarian; complement receptor location; complement receptor ... |
| CRM | Certified Reference Materials; counting rate meter; cross-reacting material; crown-rump measurement |
| SSCr | stainless steel crown |
| liquid metal | <radiobiology> Metal which has been heated past its melting point and can be used as a working fluid for pumping heat out from a powerplant. Liquid metal used as coolant in a system where significant magnetic fields exist, it behaves differently due to magnetohydrodynamic effects, these cause pressure which resists fluid circulation, suppression of turbulence, and altered flow patterns compared to non-magnetic liquid metal systems. (09 Oct 1997) |
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| liquid-metal fast-breeder reactor | <physics> Fission breeder reactor concept using liquid-metal coolant and breeding additional fuel off fast neutrons. See: breeder reactor. (09 Oct 1997) |