The output of Chinas refractory materials was only 70 thousand tons in 1949,and reached 28 million tons in 2010,which accounted for over 60% of the world total.C
The complete mitochondrial NADH dehydrogenase subunit 2 (ND2)gene sequences of two species of Thermophis,T.baileyi and T zhaoermii,were sequenced and compared t