b值机室РOperator’s platform操作员平台РOrifice plate孔板,流量孔板РOS=operating side操作侧РOscillating system振动系统РOscillation marks振痕РOut of alignment不成一直线РOut of stock已脱销,没有现货РOut of balance不平衡失去平衡РOut of roundness不圆度椭圆度РOutboard support bearing外支撑轴承РOutdated/ Obsolete 过时的,不流行的РOutdoor switchgear室外开关设备,开关装置РOutdoor storage area室外存储区РOutmost warp最外面翘曲,翘扭变形РOutline drawing略图,外形图РOutput amplitude输出信号振幅РOutput speed输出速度РOverall length全长,总长РOverrunning clutch .过载离合器,超速离合器РOver speed trip过速跳闸РOvertime pay加班费РOvertime rates加班费РOver travel超程РOwner业主РOxide film氧化膜РOxide layer氧化层РOxy-acetylene weldingРOxygen torch slab scarfing machine .火焰表面清理РOil lubrication systems 润滑系统РOil tank 油箱РOxygen 氧气РPРPack with foamed material用泡沫材料包装РPacked for ocean shipment专为海运包装РPacked with grease带油脂包装РPacking crate板条箱包装РPacking list装箱单
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