?周围接头    circumferential joint

?周节    circumferential pitch

?周缝    circumferential seam

?国际无线电干扰特别委员会    CISPR (= International Special Committee on Radio Interference)

?水箱    cistern

?中部甲板室    citadel deck house

?翼门阀    clack valve

?护面材料    clad material

?护面钢    clad steel

?夹器,钳    clamp

?夹[紧]圈    clamp ring

?夹紧螺钉    clamping screw

?澄清器    clarifier

?克拉克循环    Clark cycle

?克拉克引擎    Clark engine

?船级    class

?入级船    class boat

?船级材    class material

?船级符号    class notation

?波高等级    class of wave height

?船级证书    classification cer- tificate

?船级证书    classification certificate

?耐冰航行船级    classification for ice strengthening

?船级协会    classification society

?船级检验    classification survey

?克劳西斯循环    Clausius cycle

?爪形离合器    claw clutch

?爪形联结器    claw coupling

?爪锤,拔钉锤    claw hammer

?隔热板    cleading

?清洁压舱水    clean ballast

?清洁压舱水舱    cleaning ballast tank (CBT)

?清炉    cleaning fire

?污秽因子(热交换器)    cleanliness (or fouling) factor

?给水过滤器    cleanser (or feed filter)

?无障碍泊地    clear anchorage

?解链钩,制缆器    clear hawse pipe (or slip )

?无支柱货舱    clear hold

?回旋窗    clear view screen

?全开阀    clear way valve

?间隙,余隙    clearance

?余隙调整器    clearance adjuster