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妥当 だとう性 せい確認 かくにん試験 しけんだった
datō sei kakuninshikendatta

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Noun
, 
Da Copula

The past form of 妥当性確認試験

1. Was a suitability confirmation test.; Was a feasibility test.

Past/Perfective
, 
Computing

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妥当性確認試験だった

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