Having analysed the phenomena that materials are flowing in the funnel at the lowerpart of the tube and the fricfional force on them, the causes of the tube blocking have been indicated.

Development of Manufacturing Industry of Stainless Steel Products in Beilun;

Studies on Plant Resources and Rare Protected Plants of Beilun Ningbo City;

Sharpening the Competitiveness Edge of Beilun District by Building up A Culture of Harmoniousness;

By tracing back to the historical background of The Canon of Medicine by Ibn Sina and the developmental course of sphygmology in western medicine, the sphygmology of Ibn Sina were compared with that of Galen.

Effect on Bone Density of De-ovaried Rats with Electrical Acupuncture on Yungch′uan and Kunlun PointsTCM Hospital, Hebei Medical University;

On Kunlun in Lisao;

On the Kunlun Culture and the Belief in Fairies of Taoism;

Analysis of a Novel Symmetric Broadside-Coupled Coplanar Waveguide Balun;

The split-tapper Balun was introduced in the high-power ultra-wide-band(UWB) antenna.

This paper gives an introduction of three transmissionline transformer baluns,which can meet the need of the match of the muiltimode multifeed antenna system.