英语缩略语“Preliminary Design Approval”是什么意思，用法、释义、翻译、例句-英汉缩略语词典

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单词	Preliminary Design Approval
释义	SeePDA
随便看	cancel former order Cancel IFR Cancel IFR Flight Plan Cancel IFR (Instrument Flight Rules) Clearance Previously Given Canceling Returns Only Cancellation Addendum Sales Order Cancellation of Debt Cancellation of Debt Income Cancellation or Change to Number to Number Referral Service Cancellation Protection Plan Cancel Launch In Process Cancel Launch in Progress cancelled Cancelled Cancelled and Proceed Empty to Destination Cancelled, Cancel Cancelled Exercise Cancelled to order Cancel Purchase Request Cancel Rerouted Overflow Cancel Timer Cancel To Order Cancel Transmission Cancel VFR Cancel VFR (Visual Flight Rules) Flight Plan