The sample pre-treatment during setting up the correcting model by partial least-squares (PLS) and the way of optimizing wavelength according to normal absorption peak are discussed.
讨论了采用偏最小二乘法（PLS）建立校正模型过程中样品预处理及利用常规吸收峰优选波长的方法。
2
Objective To observe how the stress distributes when the alveolar absorption appears upon the abutments of fixed partial denture (FPD).
目的观察基牙牙槽骨发生一定程度吸收时，固定义齿应力分布的变化。
3
Conclusions Permanent-magnetic field could accelerate bone formation and inhibit bone absorption, thus being the partial mechanism for osteoporosis management.