词汇	sag ratio
释义	sag ratio 垂跨比
随便看	surface relaxation surface relaxivity surface relay surface relic surface relief surface-relief surface relief effect surface relief grating Surface relief gratings Surface-relief-gratings surface relief method surface relief pattern surface relieve surface remainders surface remaining water surface remanence surface remehing surface remelting treatment surface remodeling Surface render surface rendering surface-rendering surface rending surface renewal factor surface renewal theory