A.不大于1.0% B.不大于2.0% C.不大于3.0% D.不大于4.0%
A.DL/T634.5104-2002規(guī)約 B.DL/T719-2000規(guī)約 C.DL/T719-2000擴(kuò)展規(guī)約 D.DL/T667-1999規(guī)約