“PSFR”是“Postal System Financial Report”的缩写，意

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“STPI”是“Soul Trackers Paranormal Investigation”的

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“PSM”是“Parcel Sorting Machine”的缩写，意思是“包裹

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“PSO”是“Procurement Service Office”的缩写，意思是

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“PSSR”是“Postal System Sales Report”的缩写，意思是“

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“PST&DI”是“Postal Service Training and Development

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“PVDS”是“Plant-Verified Drop Shipment”的缩写，意思

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“PVI”是“Postage Validation Imprinter”的缩写，意思是

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“PVS”是“Postal Vehicle Service”的缩写，意思是“邮政

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“QA”是“Quality Assurance”的缩写，意思是“质量管理”

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