常見例句雙語例句Results The half lethal dose(LD50) and the half knock-down time(KT50) of compound of Chlorpyrifos and Fendona were close to or less than on using separately.結(jié)果毒死蜱和奮斗吶復(fù)配后半數(shù)致死劑量（LD50）和半數(shù)擊倒時(shí)間（KT50）均接近或小于兩藥單獨(dú)使用。www.bmsw.net.cn 返回 knock compound