| orbit motor | 摆线转子马达 | |
| orbital electron | 轨道电子 | |
| orbital quantum number | 轨道量子数 | |
| orbital repeater | 轨道中继站 | |
| orbital stability | 轨道稳定性 | |
| order | 指令 | |
| order code | 指令码 | |
| order form | 订货单 | |
| order good | 订货 | |
| order note | 购货确认书 | |
| order of accuracy | 正确度,精确度 | |
| order of connection | 接线顺序 | |
| order of deactivation | 失活反应级数 | |
| order of equation | 方程的阶 | |
| order of harmonics | 谐波次数 | |
| order of magnitude | 数量级,绝对值的阶 | |
| order of reaction | 反应级数 | |
| order of reactor | 反应堆级 | |
| order of reflexion | 反射级 | |
| order quantity | 订购量 | |
| order register | 指令记录器 | |
| order wire | 传号线 | |
| ordered arrangement | 有序排列 | |
| ordering | 排次序,有序化,调整,整理 | |
| ordering by merging | 合并排序 | |
| ordering vector | 次序矢量 | |
| ordinary beam | 普通射线 | |
| ordinary call | 普通呼叫 | |
| ordinary ray | 普通射线 | |
| ordinary wave | 寻常波 | |
| ored | 深红色的 | |
| organic | 有机的,有组织的,有系统的,有机 | |
| organic additive | 有机添加剂 | |
| organic based resist | 有机基质光刻胶 | |
| organic binder | 有机粘结剂 | |
| organic carbon | 有机碳 | |
| organic chemicals | 有机药品 | |
| organic chloramine | 有机氯胺 | |
| organic dye laser | 有机染料激光器 | |
| organic electronic element | 有机电子元件 | |
| organic fill | 有机填料 | |
| organic liguid laser | 有机染料激光器 | |
| organic liquid | 有机液体 | |
| organic plastics | 有机塑料 | |
| organic resist stripper | 有机抗蚀剂去除装置 | |
| organic semiconductor | 有机半导体 | |
| organic-base | 有机碱 | |
| organization | 组织 | |
| organo-uranium complex | 有机铀络合物 | |
| organometallic compound | 有机金属化合物 | |
| organosilicon material | 有机硅材料 | |
| orientation | 晶向 | |
| orientation dependent etch | 定向腐蚀剂 | |
| oriented crystallization | 取向结晶动作 | |
| oriented growth | 取向生长 | |
| oriented nucleation | 定向成核 | |
| orienting thrust motor | 定向推力发动机 | |
| orifice meter | 孔板量计 | |
| original artwork | 掩模原图 | |
| oros | 光学只读存储器 | |
| orthicon | 正析像管 | |
| orthogonal | 正交的,垂直的,直角的,正交,直交,矩形的,正规化,标准化,规格化 | |
| orthogonal axes | 正交轴 | |
| orthogonal basis | 规范正交基 | |
| orthogonal component | 正交风量 | |
| orthogonal coordinates | 直角坐标,正交坐标 | |
| orthogonal lattice | 矩形栅格 | |
| orthogonal matrix | 正交矩阵 | |
| orthogonal parity check | 正交奇偶校验 | |
| orthogonal scanning | 正交扫描 | |
| orthogonal system of functions | 函数的正交系 | |
| orthogonal transformation | 正交变换 | |
| orthogonal vector | 正交矢量 | |
| orthogonality | 正交性 | |
| orthogonalizable convolution codes | 可正交卷积码 | |
| oscillate | 振荡,振动 | |
| oscillating armature motor | 振动电枢式电动机 | |
| oscillating circuit | 振荡电路 | |
| oscillating coil | 振荡线圈 | |
| oscillating component | 振荡分量,振荡部分,振动部分 | |
| oscillating contact | 振动触点 | |
| oscillating control servomechanism | 振荡控制伺服机构 | |
| oscillating crystal | 振荡晶体 | |
| oscillating current | 振荡电流 | |
| oscillating curve | 振荡曲线 | |
| oscillating cylinder viscometer | 振动柱体粘度计 | |
| oscillating discharge | 振荡放电 | |
| oscillating electromotive force | 振荡电动势 | |
| oscillating feeder | 振动给煤机,振动给料机 | |
| oscillating flow | 脉动流 | |
| oscillating force | 振动力 | |
| oscillating frequency | 振荡频率 | |
| oscillating function | 振荡函数 | |
| oscillating grate | 振动炉排 | |
| oscillating impulse | 振荡脉冲 | |
| oscillating klystron | 振荡速调管 | |
| oscillating linear motor | 振荡式线性电动机 | |
| oscillating meter | 振动式仪表 | |
| oscillating motion | 振动 | |
| oscillating motor | 摇动马达 |

