回归正交试验试验
regression-orthogonal design
钚再循环试验反应堆
plutonium recycle test reactor
常压热循环试验
Thermal cycling test of ambient atmosphere
冻融循环试验
alternate freezing and thawing experiment
freezing-thawing cycle test
freeze-thaw cycling test
Alternate freezing and thawing test
freeze-thaw cycle test
freez-thaw cycle test
干湿循环试验
dry-wet circulation experiment