OCV
Oil Control Valve
机油控制阀
ODEC
Overdrive Engagement Control
超速档接合控制
ODI
Oil Drain Interval
排油间隔
OE
Opposed-Cylinder Engine
对置缸发动机
OHC
Over Head Camshaft
顶置凸轮轴
OLTBI
Open Loop Throttle-body Fuel Injecto (system)
开环节气门燃油喷射器（系统）
OOCL
Orient Overseas Container Line Ltd.
东方海外货柜航运有限公司
OPEST
Oil Protection and Emission System Test
机油保护和排放系统测试
ORT
Order of Railroad Telegraphers
铁路电报员令
OTCS
Over-Temperature Control System
过热控制系统
OTG
oil temperature gauge
油温表
owc
over weight charge
超重收费
OX1
Oxygen Sensor1
氧气传感器1
OX2
Oxygen Sensor2
氧气传感器2
p.o.b
pilot on board
机上飞行员
PACV
Pulse Air Check Valve
脉冲空气止回阀
PAF
Pulse Air Feeder
脉冲供气器
PAPI
Precision Approach Path Indicator
精密进近路径指示器
PAS
Pulse Air Solenoid or System
脉冲空气电磁阀或系统
PAV
Pressure-Actuated-Venting
压力驱动排气
PCC
Pilot Controller Communication
飞行员控制器通讯
PCI
Prechamber Injection (combustion process)
预燃室喷射（燃烧过程）
PCSDM
Passenger Compartment Sensor/Diagnostic Module
乘客室传感器/诊断模块
PCSG
Pressure Compensated Simple Governor
压力补偿简单调速器
PCV
positive crankcase ventilation
曲轴箱正向通风
PCV
Passenger Car Vehicle
乘用车