In flood season, sediment discharge of reservoir retrogressive erosion is proportional to discharge and water surface slope before the dam, its rang is between Guduo and Dayudu.

Progress in the application of isotopic fingerprint analysis to food origin traceability;

Recommendation of Traceability of the Value of Quantity of Natural Gas Flow Rate of the West-to-East Natural Gas Transmission;

Study of Field Traceability of Visual Inspection System of IVECO Body;

The method trace to the source of the voltage transformer detection installation based on high-voltage deduced method;

The restraining criminal law is pursued as a kind of value to the criminal law by exploring its origin.

The problems are: some allusions are mistaken for non-allusions, some non - allusions are regarded as allusions, and some allusions are not given their true origins.

This paper is to explore the cause and origin of Liuzhou fantastic stones,to add rich connotation to fantastic culture and promote its association and prosperity.