p.pa.

基本解释

The results were as follows:1.The mean pulmonary arte-rial pressure(P pa)and pulmonary vascular resistance(PVR)were signiflcantly decreased by in-haled NO in chronic hypoxic rats(P 结果表明：（1）常氧吸入NO时能明显降低慢性缺氧大鼠肺动脉平均压（Ppa）和肺血管阻力（PVR），但对正常大鼠的Ppa和PVR无明显影响；
Following ZAP infusion the mean pulmonary pressure (P pa) , lung lymph flow and clearance rate of lung lymph protein are elevated in control goats, but those changes are less marked in leukopenic goats.
ZAP可致肺血管阻力及肺淋巴蛋白清除率升高,肺淋巴流量增加。白细胞减少组的山羊上述指标的增加幅度显著低于白细胞数正常组。
She works as PA to the managing director.
她给总经理作私人助理。
I mind my p's and q's whenever I see him.
每当我见到他我都谨慎行事。
In English, b, p, m and w are bilabials.
英语中的b、p、m、w为双唇音。