In the network control program, a group of block handling routines that are executed sequentially to process a block control unit at a specified point in its path through the network control program.; 在網(wǎng)絡(luò)控制程序中,為了在經(jīng)過(guò)網(wǎng)絡(luò)控制程序的通路中的指定的點(diǎn)上處理塊控制單元而 順序執(zhí)行的一組塊處理例程。參閱block handling routine, block control unit。