?泥浆池    mud pit (or wet mud tank)

?泥浆泵    mud pump

?泥耙    mud rake

?套筒联结器,筒形联结器    muff (or box) coupling

?消声器    muffler (or silencer)

?多管穿线板    multi cable transit

?多频道    multi channel

?多轴环式    multi collar type

?多盘阀    multi disc valve

?夹层安全玻璃    multi safety glass

?多断开关    multi-break switch

?多盘管给水加热器    multi-coil feed heater

?多线电缆    multi-conductor cable

?多芯电缆    multi-conductor cable (or multi-core cable)

?多芯电缆    multi-core cable

?多柴油机推进    multi-diesel propulsion

?多焰气炬    multi-flame torch

?多流加热器    multi-flow heater

?多种燃料引擎    multi-fuel engine

?多功能支持船    multi-function support vessel

?多层焊接    multi-layer welding

?孟滋合金(锌铜合金)    multi-metal

?多窄波束声纳    multi-narrow beam sonar

?多管式龙骨    multi-pipe keel

?多面接头    multi-plane joint

?多板离合器    multi-plate clutch

?多段离心风扇    multiple centrifugal fan

?多缸式    multiple cylinder

?多轴钻床    multiple drill

?多[重]效[用]蒸发器    multiple effect evaporator

?多效冷冻器    multiple effect refrigerator

?多极点焊机    multiple electrode spot welding machine

?多岐排气    multiple exhaust

?多歧排气    multiple exhaust

?多胀式机    multiple expansion engine

?多级膨胀机    multiple expansion engine

?层积焊法    multiple layer process

?多杆材料试验机    multiple lever testing machine

?多人用焊接机    multiple operator welding machine

?复式冲床    multiple punch (or multiple punching machine)

?复式冲床    multiple punching machine

?复式电阻焊    multiple resistance welding