Southwestern Institute of Physics;
Chengdu 610041;
China;
Institute of Physics;
Chinese Academy of Sciences;
Beijing 100080;
Chinafects of dipole electric fields on neoclassical transport are studied. Large asym-metry in transport is created. The dipole fields;
which are in a negative R-direction;
reduce theion drift;
increase electron drift;
and change the steps of excursion due to collisions. It is foundthat different levels of dipole field intensities have different types of transport. For the lowestlevel of the dipole field;
the transport returns to the neoclassical one. For the highest level of thedipole field;
the transport is turned to be the turbulence transport similar to the pseudo-classicaltransport. Experimental data may be corresponded to a large level of the dipole field intensity.;
不对称性; 新古典主义传输理论; 偶极电场; 热离子传导; 托克马克装置;