The fading correction and its corresponding calculation method were specially introduced in this paper for improving the accuracy of the environment cumulate kerma.
The influence of a new high-performance bond on the heat-fading-resistance of a self-manufactured semimetal friction materials used for auto brake disk was discussed.
The nodulizing power of the La-Mg nodulizer and its influences on the chilling sensitivity of nodular cast iron and the property of anti-degeneration were studied.
In the two years since the housing bust started in earnest, the contraction in homebuilding has taken around one percentage point a year of GDP growth.