pcn怎么记

Methods: Taking the PCN operation performed under the direct of B-ultrasonic image to diagnosis and treatment on upper urethra obstruction.

方法：采用B超引导下经皮肾穿刺造瘘（PCN）术对上尿路梗阻性疾病达到诊治目的。

Future wireless personal communication network ( PCN) will support inter-network roaming between different access networks and core network for higher density and mobility users that will lead to large quantities of system resources consuming.

未来的无线个人通信服务PCN（Personal Communication Network）将支持更高密度，更高移动性的用户，并支持采用不同接入网与核心网的用户进行网间漫游。这将会产生巨量的系统资源消耗。

Analysis of PCN Calculation Method for Composite Runway Pavement of Airport

机场复合道面PCN计算方法分析