不详;
National;
Key;
Laboratory;
for;
Surface;
Physics;
and;
Chemistry,;
China;
Academy;
of;
Engineering;
Physics,;
Mianyang,;
China;
Ningxia;
Orient;
Non-ferrous;
Metals;
Group;
Co.;
Ltd,;
Shizuishan;
City,;
Ningxia,;
China;
Nuclear;
Power;
Institute;
of;
China,;
P.;
O.;
Box;
436,;
Chengdu;
610041,;
China;