artificial background的意思|示意

A fast detection algorithm for artificial IR targets is presented which is based on the difference of fractal dimensions between simple natural background and man-made targets.

利用自然背景与人造目标在分形维数上的差异，提出了一种针对自然背景下的快速红外目标检测技术。

To detect artificial neutrinos using existing telescopes means screening out the natural neutrino background.

要利用现有望远镜检测有来自智慧生物的中微子意味着要滤掉来自天然中微子的噪音背景。

BACKGROUND: There are so many researches on complication of artificial joint of bone cement in clinics, but the effect of implanting artificial joint of bone cement on distal femoral shaft is unclear.

背景：临床上对骨水泥型人工关节并发症的研究已经很多，但是目前骨水泥型人工关节植入后对股骨远端影响方面的研究尚缺乏。