Conclusion The main supporting force position is on abutments of the bridge supported by tooth-implant; The implant neck is the most possible area for fracture.

结论：天然牙—种植体联合桥主要支撑力的部位是颈缘处，该处为种植体折断机率最大的区域；

A possible area of research is the identification of other forms of immunostimulatory or targeted agents that when given in combination with the vaccine may optimize the vaccine effect.

一个可能的研究领域是其他免疫刺激形式或当疫苗联合给药时可能使疫苗效应发挥得更完善的靶因子的辨认。

Yuan Longping invents super hybrid rice, making it possible to increase rice harvest without expanding the area of the field.

袁隆平发明了超级杂交水稻，这项技术可在不扩大稻田面积的情况下增加水稻产量。