nullsomic 缺對(duì)染色體的nullset n.零集(空集)nulls adj.無(wú)效的；無(wú)價(jià)值的；無(wú)效力的n.零；空vt.使無(wú)效nullring 零環(huán)nullozygous 無(wú)義純合子nullosomy 缺對(duì)染色體nullosomic 缺對(duì)染色體的nullor n.雙向無(wú)耗二端口網(wǎng)絡(luò)nullode 無(wú)極管nullo n.零(遙控飛機(jī))nullizygous 敗合的nullius 無(wú)主的nullity set [數(shù)學(xué)]零化集nullity of juristic act [法學(xué)]無(wú)效法律行為nullity (n.) nullity n. 無(wú)效；無(wú)價(jià)值的事物或人；[數(shù)] 零度；退化階數(shù)nullities n.無(wú)效；無(wú)足輕重nullisomy 缺對(duì)染色體nullisomic 缺對(duì)染色體的nullisome 缺對(duì)染色體