机构:

“PAL”是“Program Assembler Language”的缩写，意思是“

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“PALS”是“Precision Approach and Landing System”的

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“PAM”是“Preventive and Aerospace Medicine”的缩写，

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“PaM”是“Passage Material”的缩写，意思是“通道材料”

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“PAR”是“Performance Assessment Report”的缩写，意思

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“PAR”是“Population At Risk”的缩写，意思是“处于危险

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“PARC”是“Principal Assistant For Contracting”的缩

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“PARKHILL”是“High Frequency Cryptological Device”

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“PARPRO”是“Peacetime Application of Reconnaissance

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“PAS”是“Personnel Accounting Symbol”的缩写，意思是“

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