V-P的音标

The headstream and terminal indexes of the environmental load per ton crude steel and their correlation formula were proposed, and also the v-p and w-p methods were established for environmental load analysis.

提出了吨钢环境负荷的源头指标和末端指标，建立了两者之间的关联式，以及吨钢环境负荷v-p分析法和w-p分析法。

Methods Sixty-seven patients with suspected PE in our hospital between 2001 and 2004 underwent SCTA and V-P scintigraphy, Sensitivity and specificity for diagnosing PE were calculated for SCTA scans and V-P scintigrams, comparing with the final clinical diagnosis.

方法分析我院2001-2004年住院67例临床疑有PE的患者，同时进行了SCTA检查和V-P显像，以最终临床诊断为标准，分别评价两种显像方式单独及联合使用对PE诊断的临床价值。

Heteropoly quaternary ammonium was synthesized by P-Mo-V heteropoly acid with tetrabutyl ammonium bromide, and was then characterized by FTIR and XRD. Results showed the Keggin structure of heteropoly anion had not collapsed and had combined with quaternary ammonium.

以自制的P-Mo-V三元杂多酸为反应物，采用复分解反应合成了杂多季铵盐，并用FTIR和XRD对其进行了表征，证明杂多阴离子的Keggin结构没有损坏并与季铵离子成功化合。