They also sayah sex sponsors should reconsider the usual financial and time constraints placed on investigators conducting HIV-prevention trials. 他們還說(shuō)，研究資助者應該重新考慮對從事艾滋病臨床研究的科學(xué)家的常規財務(wù)和時(shí)間約束。
The definition of time constraint was put forward considering the impact of the length of the time's compartmentalization and the self-learning function of the system was realized. 由于行為軌跡中時(shí)間段劃分跨度對推薦源數據實(shí)用價(jià)值存在影響，故提出了時(shí)間約束定義，同時(shí)完成了該算法中自動(dòng)學(xué)習功能的實(shí)現。
