| Blind carbon copy | ���� ���� | | Blind search | ��������� �� | | Block Check character (BCC) | �� ���� � | | Block length, fixed | ���� 郎���� �� | | Block operator | ��� �������� | | Block sorting | �� ������� | | Block structure | ��� ����� | | Block structured language | ��� ����� ���� | | Block transfer | ��� ������� | | Block, storage | ������� �� | | Blocking factor | ��� ���� | |