PFV

基本解釋

CRS and RRS were measured using the passive expiratory flow volume technique (PFV).
采用美國森迪公司 2 6 0 0型肺功能儀 ,利用被動流速容量技術(shù) (PFV)進(jìn)行CRS及RRS的測定。
However, only those adults in the VT/orthoptics group had clinically meaningful improvements in NPC and PFV.
但是，只有在VT/斜視矯正組中的成人，其NPC 和PFV獲得顯著的進(jìn)展。
A perturbational finite volume (PFV) method for the convective diffusion equation is presented in this paper.
在有限體積(FV)方法的重構(gòu)近似中;引入數(shù)值攝動處理;即把界面數(shù)值通量攝動展開成網(wǎng)格間距的冪級數(shù);并利用積分方程自身的性質(zhì)求出冪級數(shù)的系數(shù);同時獲得高精度迎風(fēng)和中心型攝動有限體積(PFV)格式.
This indicated that (1) The PFV of thyroid arteries revcovered slower than that of thyroid function .
提示：（1）甲狀腺PFV的恢復(fù)晚于甲狀腺功能的恢復(fù)，或甲狀腺血流狀態(tài)不僅取決于甲狀腺功能狀態(tài)；
The resulting formulae of the above perturbation operation are higher-order upwind and central PFV schemes.
二階和四階中心PFV格式對網(wǎng)格Peclet數(shù)的任意值均為正型格式;比常用的二階中心格式優(yōu)越.