TSB Target Specification Block
multi-target target tracking
block and block [= chocka-block
New target and used target
target and target environmental characteristics
target to non target ratio
target and non-target organism
multiple-target-situation decisions with a synthesized target
target and non-target insect
2 atrioventricular block and complete atrioventricular block
BDCB Block Device Control Block
Block 36 and Block 38 in Oman
block by block relaxation operator
block by block transfer
block gage (gage block) (slip gage)
Block Xia 502 and Block Xia 509