出纳员正把所收的款项加起来.The teller is adding up her receipts.出纳员正把所收的款项加总起来.The cashier is adding up her receipts.年轻的出纳员忍耐地叹了一口气.The young cashier gave a patient sigh....
Conclusion Saponin of Aralia decaisneana Hance has the effect of anti - aging.结论黄毛楤木皂苷具有延缓衰老的作用.In the end, however, he lost to Hance by six percentage points.然而他最终还是以6个百分点的劣势败给了汉斯.Objective To observe the anti - aging e...
以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps....