Summary of detecting methods of keyhole in plasma arc welding;

Studies of detecting method on the products of dietetic lampblack purifying equipment;

Detecting method of retarding effect of S-type retarder for plaster;

Pollution of the L. monocytogenes and its detection method research progress;

Advancement in the study of leakage detection method for long-distance oil and gas transportation pipeline;

Gas pipeline leakage detection method based on micro-wave technology;

Field performance testing method research and implementation of elevator limited speed device and security pincers;

The assessment and testing method of foundation reinforcement effect of dynamic compaction;

Miss distance error due to rotation of CCD sensor imaging surface and its testing method;