单词	LD 50
释义	LD 50 (=50% lethal dose)半数致死量
随便看	shift quality shift rail shift rail arm shift rate shift reaction shift reactor shift reagent shift-reduce conflict shift reduce conflict shift reduce machine shift-reduce machine shift-reduce method shift reduce parser shift-reduce parser shift-register shiftregister shift register shift-register circuit shift register circuit shift-register code shift register code shift register drive shift register generator shift-register generator shift register graph 黯黯生天际黯黯见临洮黯黯长安路黯黯青山红日暮黯黯青山红日暮黾勉空仰止鼎中炼熟丹砂鼎湖龙髯安可攀鼓击春雷鼓动六街骑马出劝诱劝诲劝说劝谏劝谕劝辞劝返劝进劝退劝道