单词	二重底
释义	同二重底--双重底
随便看	tripleness triple-n harmonics triple nutritional mutant triple packer triple parabiose triple-pass boiler triple passing tone triple-pass scanner triple petticoat bell shaped insulator triple-phase triple-phase line triple-phase region triple plane triple play triple play service triple point triple-point cell triple point of equilibrium hydrogen triple point of nitrogen triple point of water triple-point temperature triple point water triple-pole triple pole double throw triple-pole double-throw