A-frame A 型骨架A-truss A 型构架abrasion 磨耗;磨蚀abrasive cut-off machine 磨切机abrasive grinding machine 磨机(火石机)abrasive particle 磨粒absorption 吸收abutment 桥台;拱座abutting end 邻接端acceleration 加速acceleration lane 加速车道acceleration pedal 加速器踏板accelerator 催凝剂;加速器;催化剂acceptance criteria 接受准则access 通路;通道access door 检修门;通道门access lane 进出路径access panel 检修门access point 入口处;出入通道处access ramp 入口坡道;斜通道access road 通路;通道access shaft 竖井通道access spiral loop 螺旋式回旋通道access staircase 通道楼梯access step 上落踏板;出入踏板access tunnel 隧道通道accessible roof 可到达的屋顶;有通道的屋顶accessory 附件;配件accident 事故;意外accidental collapse 意外坍塌accommodate 装设;容纳accredited private laboratory 认可私营实验室accumulator 储压器;蓄电池accuracy limit 准确度极限acetylene cylinder 乙炔气(风煤)樽acid plant 酸洗设备;酸洗机acid pump 酸液泵acid tank 酸液缸acoustic couplant 声耦合剂acoustic coupler 声耦合器acoustic lini