﹛﹛output system,輸出系統
output unit,輸出設備
output variable,輸出變量
output vector,輸出向量；輸出矢量
oval gear flowmeter,橢圓齒輪流量計
oval wheel flowmeter,橢圓齒輪流量計
oven temperature,箱溫
over-current protection,過電流保護
over-voltage protection,過電壓保護
overall design,總体設計
overdampin,非周期阻尼；過阻尼
overflow,溢出
overflow indication,溢出指示
overlapping averages,滑動平均
overlapping event,交迭事件
overload,過載；超負荷
overload flow-rate,過載流量
over-load meter,過載儀
overpressure characteristic,超壓特性
overpressure failure,超壓破裂
overrange,過范圍
overrange limit,過范圍限
overshoot,過衝；超調量；過振比
overview panel,總貌畫面
overvoltage protection varistor,過電壓保護電壓敏電阻器
oxide thermistor,氧化物熱敏電阻器
oxygen bomb,氧彈
oxygen bomb calorimeter,氧彈式熱量計
oxygen (pressure)gauge,氧壓力表
oxygen regulator,氧气減壓器
ozone analyzer,臭氧分析儀
ozone sonde,臭氧探空儀
ozone spectrophotometer,臭氧分光光度儀
P-net,P-net總線
P-scope,P型顯示
P.T.C.thermistor,正溫度系數熱敏電阻器
p-type oxide gas sensor,P型氧化物气敏元件
P-V-T-t technique,壓力-容積-溫度-時間法
pack,包裝件
package,包裝；包裝件
packaging,包裝
packaging standard,包裝標准
packed capillary column,真充毛細管柱
packed column,填充柱
packed-type solenoid valve,填料函型電磁閥
packet,包
packet mode,包方式
packet sequencing,包排序
packet switching,包交換
packing,包裝
packing box assembly,填料函組件
packing machine (liquid chromatographic column),（液相色譜柱）裝填机
packless solenoid valve,無填料函型電磁閥
page addressing,頁面尋址
page printer,頁式打印机
page-at-a-time printer,一次一頁印刷机；頁式印刷机
panel,盤；屏，畫面
panel mounting (pressure) gauge,盤裝壓力表
panoramic exposure,周向照射；全景照射
pantograph,縮放儀
paper based strain gauge,紙基應變計
paper chromatography,紙色譜法
paper tape,紙帶
paper tape punch,紙帶空孔机
paper tape reader,紙帶閱讀机
paper tape unit,紙帶單元
parachute drogue,漂流傘
parallax,視差
parallel computer,并行計算机
parallel crate controller,并行机箱控制器
parallel highway,并行信息公路
parallel operation,并行操作；并聯工作
parallel output system,并行輸出制
parallel plate micrometer,平板測微器
parallel processing,并行處理
parallel programming,并行程序設計
parallel transmission,并行傳輸
paramagnetic oxygen analyzer,順磁式氧分析器
parameter,參數
parametric input,參量輸入
parasitic echo,干扰反射波
parasitic voltage of voltage divider,分壓箱寄生電壓
parasol radiometer,傘式輻射計
parent-molecule ion,母分子离子
parity check,奇偶校驗
partial failure,部分失效
partial immersion,thermometer,局浸溫度計
partial pressure gauge (PPG)，分壓強計
partial radiation thermometer,部分輻射溫度計
partition chromatography,分配色譜法
partition coefficient,分配系數
partition isothem,分配等溫線
part-turn electric actuator,角行程電動執行机构
Pascal,帕（斯卡）
pass-line deflection,跑偏
passing unregistered gas (PUG),漏記气体
passive remote sensing,被動遙感
passive transducer [sensor],無源傳感器
path,通路
path frame,通路幀
