?螺桨吸力面    propeller suction side

?螺桨表面    propeller surface

?螺桨推力    propeller thrust

?螺桨警示灯    propeller warning signal light

?螺桨背倾    propeller wash back

?[径向]变距螺桨    propeller) varying pitch propeller (or non-uniform pitch

?螺桨船体涡空泡    propeller-hull vortex cavitation (PHV)

?比例带    proportional band

?比例分规    proportional compasses (or divider)

?比例控制    proportional control

?比例分规    proportional dividers (or compasses)

?比例限界    proportional limit

?比例尺    proportioner

?进    propulsion

?推进    propulsion

?推进效率    propulsion coefficient (or efficiency)

?推进设备    propulsion equipment

?推进机械    propulsion machineries

?推进效率    propulsive coefficient (or efficiency)

?推进效率    propulsive efficiency (or coefficient)

?保护涂层    protective coating

?护罩    protective cover

?保护被覆    protective covering

?防护甲板    protective deck

?防蚀板    protective plate

?防护衣具    protective ware

?海难报告书    protest (or sea protest)

?议定书    protocol

?原型    prototype

?量角器    protractor

?凸角    protrude angle

?校准杆    proving (or calibrating) lever

?给养    provision

?粮食吊车    provision crane

?粮食库    provision room

?粮食库,给养库    provision store

?粮食库,给养舱    provision store (or room)

?临时证书    provisional cer- tificate

?临时证书    provisional certificate

?临时设计    provisional design

?极限开关    proximity limit switch

?脉动复现率    PRR (= pulse recurrence rate)