GENERAL ELECTRIC CR205X-100D AUXILLARY CONTACT GENERAL ELECTRIC CR205X100C CR205X100C GENERAL ELECTRIC CR205X100C CR205X100C GENERAL ELECTRIC CR205-A002 CR205A002 GENERAL ELECTRIC CR204-XSP6 CR204XSP6 GENERAL ELECTRIC CR204XSP4 CR204XSP4 GENERAL ELECTRIC CR204-XSP2 CR204XSP2 GENERAL ELECTRIC...
ФдДТY 30d/36f 50d/72f 75D/36f-72f-144f 100d/72f-144f 120d/192f 150d/144f-192f-288f Информацияотранзакции Цена1,2-1,8 $/ кг2,75 $/ кг2,75 $/ кг2,5 $/ кгЦенаДоговорн...
而在新规范GB 50118-2010中对空气声隔声指标的评价在原有计权隔声量的基础上增加了粉红噪声频谱修正量 (C) 和交通噪声的频谱修正量 (Ctr) 。 (如图2) 当噪声源为粉红噪声时, Rw+C采用计权隔声量与粉红噪声频谱修正量之和。Rw+C表示的是:建筑构件对具有粉红噪声频率特性的这类噪声 (中高频噪声) 的隔声性能。