单元: unit; unit element; cell; lo ...访问: visit; call on; interview; a ...操作: operate; manipulate; handle堆栈访问操作: stack reference operation存取操作, 访问操作: accessing operation访问单元: au access unit多站访问单元: msau; multistation access unit介质访问单元: mau media access unit可控访问单元: cau controllable access unit媒体访问单元: media access unit受控访问单元: controlled access unit中央访问单元: cau controlled access unit操作单元: operationcontrol单元操作: unit operations; unit process控制单元网络访问: cena control element network access控制器访问单元: cau controller access unit操作基因单元: operon操作维护单元: gsn operation and maintenance unit撤消操作单元: undo action unit单元操作设备: unit operating equipment化工单元操作: chemical engineering unit operation; unit operations of chemical engineering操作协议数据单元: opdu operations protocol data unit; operation protocol data unit操作员控制单元: operator control element单元操作与过程: unit operations and processes多重操作焊接单元: multiple-operator welding-unit