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GB/T 41283.1-2022 in English
Acoustics—Soundscape—Part 1: Definition and conceptual framework
valid
Issued on:2022-03-09
$308.00 -
GB/T 7966-2022 in English
Acoustics—Ultrasonic power measurement—Radiation force balances and the requirements
to be valid
Issued on:2022-03-09
$1,232.00 -
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