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R-39 był trzystopniowym pociskiem na paliwo stałe, z silnikami pierwszego i drugiego stopnia w osłonie epoksydowej, o zasięgu 8300 km. W celu zmniejszenia rozmiarów pocisku w silnikach I i II stopnia zastosowano wysuwane dysze.
R-39. Russian submarine-launched ballistic missile. First Russian solid-propellant submarine-launched ballistic missile. Deployed on six Typhoon subs, 1984-2004. Proposed as the basis for numerous satellite launchers. AKA: 3M65;D-19 Grom;Rif-M;RSM-52;SS-N-20;Sturgeon. Status: Retired. Payload: 2,550 kg (5,620 lb).
The Origins and Early Days of the Three Rs Concept. Alternatives to Laboratory Animals, Vol. 37, Issue. 3, p. 255.
A priority for the future is the application of the Three Rs to work with primates. New uses for experimental animals continue to arise, but, after recent successes, we can now have considerable confidence in the progress of humane experimental technique.
The Three Rs. norecopa.no. Alternatives. The Three Rs. William Russell and Rex Burch developed the concept of the 3Rs during the 1950s, and described them in their book The Principles of Humane Experimental Technique, published in 1959: Replacement. Reduction. Refinement.
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The 3 R’s stand for “Reduce, Reuse, and Recycle”. This Eco Trio are rules that guide us to take care of our planet and use things wisely. 1. Reduce. “Reducing” means using less, like using fewer plastic bottles or buying products with less packaging. It’s about cutting down on waste from the start.
