Results The change of anxiety level in CCU patients was more obvious than that in the domestic constant(P<0.05);

结果CCU患者的焦虑状况与国内常模相比差异有显著性（P<0.05）；

youdao

It's not constant pressure, because we have a delta p going on. It's not constant volume either.

也不是恒容，这个限制,是这个实验的限制。

麻省理工公开课 - 热力学与动力学课程节选

p So dV/dT at constant pressure is just nR over p.

所以恒定压强下dV/dT等于nR除以。

麻省理工公开课 - 热力学与动力学课程节选

V So it's minus T dV/dT at constant p, plus V.

负的T乘以恒定压强下dV/dT，再加上。

麻省理工公开课 - 热力学与动力学课程节选

At 8:20 p.m. on the day of the explosion the pressure data suggest there was a constant flow of sea water being pumped into the drill pipe that was displacing the heavier mud system which was the primary pressure control for the well.

WSJ: The Oil Disaster Is About Human, Not System, Failure