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1. It includes five grades:��Large fault block, ��sub-large fault block, ��medium fault block, ��small fault block, ��mini faul block.
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2. It is including import block, export block, patulous memorizer block and communication network block in the system.
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3. Compared with fact joint block, fact joint block combined with dorsal spinal radicle block can improve the therapeutic effect.
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4. The address of a logical block. Logical block addresses are typically used in hosts' I/O commands. The SCSI disk command protocol, for example, uses logical block addresses.
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5. Block copolymer dissolving in selective solvent can form micelles structures with the solvent insoluble polymer block forming the micell core and solvent soluble block the corona.
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