NTS Not to Scale
OA Over All所有
OBS Obsotetc OC On Center OD Outside Diameter外直径
OPP Opposite对立
OPTL Optional可选择的
OR Outside Radius外半径
ORIG Original初始的
PAT. Patent专利
PATT Pattern形式
PC Piece,Pitch Circle件,节距圆
PCH Punch打孔
PD Pitch Diameter PERF Perforate打孔
PERM Permanent永久的
PERP Perpendicular垂直的
PFD Preferred首选的
PKG Package,Packing包装
PL Parting Line,Places,Plate PNEU Pncumatic PNL Panel面板
POL Polish磨光
POS Position,Postive位置
PR Pair对立
PRI Primary基本的
PROC Process程序
PROD Product,Production产品,产量
PSI Pounds per Square Inch PT Part,Point零件,点
QTR Quarter四份之一
QTY Quantity数量
QUAL Quality质量
R Radius半径
RA Rockwell Harden,A-Scale RB Rockwell Harden,B-Scale RC Rockwell Harden,C-Scale RECD Received巳收到的
RECT Rectangle长方形
REF Reference相关的
REINF Reinforce增强
REL Release,Relief释放,缓解
REM Remove移除
REQD Requird有需要
REE Retainer,Return REV Reverse,Revision,Revolution RFS Regardless of Feature Size RGH Rough粗糙的
RH Right Hand右手
RIV Rivet起皱
RM Ream扩展
RND Round周围
RPM Revolutions per Minute RPW Resistance Projection Weld SAE Society of Automotive Engrs
SCH Schedule进度表
缩写全称翻译CFS Cold-Finished Steel CH Case Harden CHAM Chamfer斜面
CHAN Channel渠道
CHG Change改变
CHK Check核查
CI Cast Iron铸铁
CIR Circle, Circular圆周
CIRC Circumference圆周
CL Centerline中心线
CLP Clamp夹子
CNC Computer Numerical Control电脑数值控制
COMB Combination联合
COML Commercial商业的
CONC Concentric同中心的
CONN Connect,Connector连接器
COV Cover盖子
CPLG Coupling联结
CQ Commercial Quality商业等级钢
CRS Cold Stds Association CRT Cathode Ray Tube阴级射线管
CS Cast Steel铸铁
CSA Canadian Stds Association CSK Countersink埋头孔
CSTG Casting铸件
CTR Center中心
CU Cubic立方米