ygs67 发表于 2017-12-6 08:39:46

ASTM E2963-16

ASTM E2963-16 Laboratory Measurement of Acoustical Effectiveness of Ship Noise Treatments,... Marine Bulkhead and Deck Treatment

admin 发表于 2017-12-7 18:16:07

谢谢您的分享，金币已奖励!
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