P&P

A more closed relation was found between chronotropic index and stenosis in the right coronary artery ( OR 26.21, p P < 0.01).

相关性分析显示心脏变时指数阳性与右冠状动脉病变的相关性更好（OR26.21，P＜0.01）。

A study on p& p~+ junctions of solar cells and their back surface reflectors

太阳电池P-P~+结和背反射器的实验研究

μ p τ p is calculated from measured V, value.

从测量的V r值，计算了μDτD值。

By wet-precipitation method, pure calcium phosphate powder with Ca/ P P molar ratio of 1.67 and good Crystallization is synthesized in lab.

通过湿法沉积工艺实验室合成了Ca／P摩尔比为1.67的磷酸钙粉料，其物相纯正，结晶良好。

The mean cell p o p ulation doubling time was 52 hours.

细胞群体倍增时间为52h。

P × P → P is increasing about the first variable and decreasing about the second variable.

P×P→P是关于第一变量不减的，关于第二变量不增的。