SCENARIO TWO: PREPAID VARIABLE FORWARD CONTRACT (PVF).
第二种方式：预付可变期货合同(PVF)。
Results In SRS group the postoperative compared to preopative PVF and FPP decreased (P<0.01).
结果分流组术后PVF及FPP与术前差异有显著性（P<0.01）。
Overall mean recipient portal vein flow (PVF) was much higher than the left PVF in the donors.
总体平均受体门静脉血流量较供体门脉左支血流量要高得多。
Average daily volume of ascites revealed a significant correlation with portal vein pressure, and not with PVF.
平均每天的腹水量显示其与门静脉压力显著相关，而与门静脉血流量无显著相关。
Conclusion PVF spectrum and mitral valve flow spectrum can be used to evaluate left ventricular diastolic function of RH children.
结论P VF频谱与二尖瓣血流频谱对评价RH左室舒张功能有参照意义。
The results of this paper have shown that it is successful for improvement on the water proof and adhesive strength of PVF with TDI.
研究表明甲苯二异氰酸酯对聚乙烯醇缩醛胶粘剂耐水性改性是可行的并且能提高胶粘剂的粘接强度。
Portal venous velocity index (PVI) was defined as the ratio of PVV to graft weight (GW), and portal flow volume index (PFI) as the ratio of PVF to GW.
门静脉流速指数(PVI)被定义为PV V与移植物重量(GW)的比率，门静脉血流量指数(PFI)为PVF与GW的比率。
The experimental results show that the adhesion of PVF treated with plasma is obviously improved and its shear strength is three times as that of untreated PVF.
结果表明处理后PVF的粘接性能明显有所改善，剪切强度较未处理时提高两倍左右。
Conclusion: it is simple, effective, less painful and easy to popularize to cure epistaxis by obturating nasal cavity with PVF medical sponge and Vaseline gauze piece.
结论：PVF医用海绵联合凡士林纱条鼻腔填塞是一种简便、有效、痛苦小、易于推广的鼻出血治疗方法。
Moreover, the concept of dry mixing materials packing volume fraction (PVF) is proposed, and the higher the PVF, the better performance of the cement slurry will be achieved.
提出了干混材料堆积体积分数(PVF)的概念，PV F值越高，水泥浆性能越好。
Method : After examing and treating with the patient preliminary, obturate the middle and rear part of nasal cavity first with PVF medical sponge, then Vaseline gauze piece tightly.
方法： 对鼻腔出血患者先行鼻腔检查和简单处理后，用PVF医用海绵行中后段鼻腔填塞，再用凡士林纱条加压填塞、固定。
The processing technology of blow-molded PVF film was studied, and based on the property of the prepared product, the optimization of the processing parameters were discussed in detail.
研究了采用挤出吹塑法成型聚氟乙烯薄膜的工艺；并结合制品性能，详细讨论了吹塑工艺参数的优化。
The processing technology of blow-molded PVF film was studied, and based on the property of the prepared product, the optimization of the processing parameters were discussed in detail.
研究了采用挤出吹塑法成型聚氟乙烯薄膜的工艺；并结合制品性能，详细讨论了吹塑工艺参数的优化。
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