1)first performance,premiere,首次演出2)first time,首次3)first check,首次检验4)first drawing process,首次拉深5)first identified,首次鉴定6)First vaccination,首次接种7)First-episode,首次发作8)First Chemotherapy,首次化疗9)Seek medical advice for the first time,首次就诊10)First time treatment,首次治疗
用法和例句
According to the first check project and result of wax - oil hydrogenation reactor, comprehensive safety evaluation notion of the reactor was achieved.
通过对利旧腊油加氢反应器首次检验中检验项目与检验结果的分析,给出了该反应器安全性能的综合评价意见。
The order of ratio(d_t/d_1) in table for maximum of highness-diameter (h_1/d_1) in first drawing process is revised.