Description
信号在长线中传输会遇到三个问题：一是高速变化的信号在长线中传输时出现的波反射现象，二是具有信号延时，三是长线传输会遇到外界干扰。
Agilent 19091-68506 HFM-570 Flowmeter SS Body NewInBox
Future Life CNC OPERATION PANEL KPV-001 new
MONITOUCH V710CD-038 HAKKO Touch Panel HMI Sold As Is
Agilent ZORBAX SB-C18 Solvent Saver Plus 863954-302 NEW
Lot 12 Wartsila Spring (gland/piston rod) 1.8*8*895*185
BALDOR PSM2S060-PR2 Power Supply 230vAC–325vDC Refurb
