阻尼室?    dampling chamber

数据处理?    data processing

止点?    dead center

死区容积?    dead volume

补气阀    deceleration control system

减速控制装置?    deceleration control system

座椅?    deceleration sled

推迟喷油时刻控制系统    deceleration spark advance control

减速点火提前控制装置?    deceleration spark advance control

额定工况?    declared working condition

导流板?    deflector

变形?    deformation

角度轮?    degree wheel

给气比?    delivery ratio

出厂试验?    delivery test

输出阀?    delivery valve

博览会专用车    demonstration car

展览汽车?    demonstration car

背罐车?    demountable tanker carrier

装卸机械    demountable tanker carrier

车架高度    departure angle

离出角?    departure angle

减额功率?    derating power

修井车    derrick transporter

井架运输车?    derrick transporter

设计任务书?    design assignment

系列化、通用化、标准化    design assignment

累积疲劳损伤原理    design for finite life

有限寿命设计?    design for finite life

转鼓    device for power absorption

功率吸收装置?    device for power absorption

劣化系数（    DF） deterioration factor (DF)

诊断组件?    diagnostic module

膜片式燃油泵?    diaphragm fuel supply pump

狄塞尔循环?    diesel cycle

柴油机?    diesel engine

柴油煤气机?    diesel gas engine

柴油机排烟?    diesel smoke

柴油机排烟测定仪器?    diesel smoke measuring instrument

排气烟度    diesel smoke measuring instrument

散射光?    diffused light

增压器?    diffuser (inflator)