ptn

The expression of PTN protein was mid-strong positive in the progression of classification and stage, without statistical significance.

分类及分期观察，PTN蛋白表达量呈中强阳性者居多，无统计学意义。

Clock synchronization is an important issue in Packet Transport Networking (PTN).

时钟同步是分组传送网（PTN）需要考虑的重要问题之一。

Based on the new requirement on power optical communication network, this paper discusses the necessity of using OTN and PTN technology.

针对电力系统通信业务对光通信网络的新要求，提出在电力通信系统中采用OTN、PTN技术的必要性。

Conclusion: The protein of PTN was overexpressed in oral carcinoma.

结论：PTN蛋白在口腔癌组织中高表达。

The simulation results show it can improve the computational efficiency of PTN mesh topology design.

模拟仿真结果表明，该算法有效地提高了设计满足业务需求PTN网状网拓扑的计算效率。