词汇	fish ham
释义	fish ham fiʃhæm鱼火腿
随便看	gradient start gradient steepest ascent gradient steepness gradient stop gradient strength gradient stress intensity factor gradient structure gradient structure concrete gradient structure films gradient style gradient superconducting magnetometer gradient surface energy gradient surfaces gradient system gradients Gradients gradient scale gradient scanning gradient screen survey gradient screw gradient search gradient search method gradient section gradient sedimentation gradient selection