1)fantasy,n.幻想;怪念头;幻想曲:幻想作品;想象力的产物;想入非非v.想象,空想2)PLC,n￡3)N),N）4)N~+,N~+5)n))}seguence,n）}6)A(n),A（n）7)N+,N+8)a_n),a_n）9)content of nitrogen,N%10)N-,N-
用法和例句
The effect of single and double strand breakage and its transforming activity of in vitro plasmid DN+A was analysised by 30Kev N++、Ar+ ion beam radiation respectively.