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费密宇宙射线加速理论
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核科学技术词汇手册
费密宇宙射线加速理论
Fermi theory of cosmic ray acceleration
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back pressure of steam trap
back pressure steam turbine
back pressure test
back pressure turbine
back-pressure turbine
back pressure valve
back-pressure valve
back pricing
back projection
back projection
back-propagation
back-propagation learning algorithm
back propagation network
back pull drawing
back pulling
back pulling
back pull stress
back-purge system
back purge system
back rasher
back reaction
back reaction
back recovery
back region
back rent
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