1 ACCESS Accessory 附件ADJ Adjustable,Adjust 调整ADPT Adapter 使适应ADV Advance 提前AL Aluminum 铝ALLOW Allowance 允许ALT Alternate 改变ALY Alloy 合金AMT Amout 数量ANL Anneal 锻炼ANSL Amer Natl Stds Institute APPROX Approximate 大约ASME Amer Society of Mech Engrs ASSEM Assemble 装配ASSY Assembly 装配AUTH Authorized 授权的AUTO Automatic 自动的AUX Auxiliary 辅助的AVG Average 平均AWG American Wire Gauge BC Bolt Circle 螺栓圆周BET Between 之间BEV Bevel 斜角BHN Brinell Hardness Number 布氏硬度值BLK Blank ,Block 空白B/NM Bill of Material 材料费BOT Bottom 底部BP or B/P Blueprint 蓝图BRG Bearing 轴承BRK Break 破裂BRKT Bracket 支架BRO Broach 钻孔BRS Brass 黄铜BRZ Bronze 青铜B&S Brown &Shape 棕色&形状BSC Basic 基本的BUSH Bushing 套管BWG Birmingham Wire Gauge C TO C Center-to-Center 中心到中心CAD Computer-Aided Drafting 电脑辅助设计CAM Computer-Aided Mfg CAP Capacity 容量CAP SCR Cap Screw