数字通信用对绞或星绞多芯对称电缆标准_GBT18015.1~18015.7_1999 Standard for multi-core symmetrical cable for twisted pair or star-spinning for digital communication_(GBT 18015.1~18015.7-1999)
Calpuff模型源码最新版 CALPUFF模型最新源码,包含三部分:CALMET_v6.5.0_L150223.zip,CALPUFF_v7.2.1_L150618.zip,CALPOST_v7.1.0_L141010.zip