描述
CRC码是一种高效能的检错和纠错码。数据在传输过程中,可以是一帧,也可以是两帧,如果是两帧,头帧是旗,第二帧才是数据。最长的一帧信息可长达200多个字节。采用存储转发协议的网络中,当一个结点发生故障时,把这个结点旁通,让信息通过。
Reitschle vacuum pump and motor tested and runs # 7860
Savant VLP200 High Vacuum Pump
NEW LEM LIQUID RING VACUUM PUMP / GAS COMPRESSOR 1.5 KW
Edwards DIFFSTAK 100mm Diffusion Pump, w/POWERED VALVE
PARKER generator CONVUM VACUUM PUMP PA244-RV3.5
Becker Vacuum pump and motor DVT 2.80 Tested and runs
OSAKA TC VACUUM PUMP CONTROLLER / POWER SUPPLY TC1300