file hierachical block data model
block check character
字块检验字符
信息组检验符
块检验字符
方块检查字符
块检查字符
convesion of curved-surface data into borizontal-plane data
data processing for piecing together various 3 D data sets
ratio of test data to design data
seismic data transmission data
test data and the highest data
2 atrioventricular block and complete atrioventricular block
Block 36 and Block 38 in Oman
Block Xia 502 and Block Xia 509