单词	S wave
释义	S wave noun : a wave (as from an earthquake) in which the propagated disturbance is a shear in an elastic medium (such as the earth) compare pressure wave Word History Etymology secondary First Known Use 1913, in the meaning defined above Medical Definition S wave noun ˈes-ˌ  : the negative downward deflection in the QRS complex of an electrocardiogram that follows the R wave
随便看	backyards grass sack grass sandwort grass shears grass shrimp grass silage grass skirt grass snake grass snipe grass sorghum grass spider grass sponge grass thrips grass tree grass up grass vetch grass vetchling grass warbler grass webworm grass whip grass widow grass widower grass wrack grass-bird grass-blade

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。