1 . 首先
7. wisdom n. 智慧;學識8. firstlyadv. 首先9. remove vt. 移動;搬開
2 . 首次
and has firstlydefinite expounded that carbonizing reaction process is a four phases reacting process ;, 并首次明確提出了碳化過程是一個四相漿態反應過程的觀點;
3 . 論文首先
firstly, according to the spot circumstances , the influencing factors to the life cycle of polytetrafluoroethylene piston ring were analyzed and concrete measures to extend life cycle were presented ;論文首先根據現場的實際工況,分析了聚四氟活塞環壽命的影響因素,并提出了延長其使用壽命的具體措施;
4 . 文章首先
firstlythe article introduce virtual reality and its significance to the employee training in salt industry , then explains what VRML is and finally shows how to carry VR into execution in salt pond as a part of employees' training .文章首先介紹了虛擬現實并闡述了虛擬現實對鹽