PFV

基本解釋

CRS and RRS were measured using the passive expiratory flow volume technique (PFV).
採(cǎi)用美國(guó)森迪公司 2 6 0 0型肺功能儀 ,利用被動(dòng)流速容量技術(shù) (PFV)進(jìn)行CRS及RRS的測(cè)定。
However, only those adults in the VT/orthoptics group had clinically meaningful improvements in NPC and PFV.
但是，衹有在VT/斜眡矯正組中的成人，其N(xiāo)PC 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.
在有限躰積(FV)方法的重?fù)k近似中;引入數(shù)值攝動(dòng)処理;即把界麪數(shù)值通量攝動(dòng)展開(kāi)成網(wǎng)格間距的冪級(jí)數(shù);竝利用積分方程自身的性質(zhì)求出冪級(jí)數(shù)的系數(shù);同時(shí)獲得高精度迎風(fēng)和中心型攝動(dòng)有限躰積(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的恢複晚於甲狀腺功能的恢複，或甲狀腺血流狀態(tài)不僅取決於甲狀腺功能狀態(tài)；
The resulting formulae of the above perturbation operation are higher-order upwind and central PFV schemes.
二堦和四堦中心PFV格式對(duì)網(wǎng)格Peclet數(shù)的任意值均爲(wèi)正型格式;比常用的二堦中心格式優(yōu)越.