The quality analysis for gas nitrocarburized inner gear ring of heavy truck imported from Austria was taken by means of macro/micro-examination, hardness measuring and running test.
Macro mineral elements content is one of the important factors effecting the herbage quality, 60species of herbage in Alashan desert district in Inner Mongolia were studied in this aspect.
The theory of common balance remains significant to analysis of increase of macro-control economy, for it helps us understand deeply the inner mechanism of movement of Chinese macro-control economy.