T. L. for steel stud partition is higher than wood stud by 4 dB in average.

钢墙筋隔墙比木墙筋的一般要高出4分贝。

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L. of 3-6 dB for steel stud partition is achieved, 6-9 dB for wood stud partition. (4) Acoustical fiber bat in cavity would improve the T.

墙筋和墙 板之间加上软质 纤维 板作垫层可减少声桥的影响，对钢墙筋隔墙可有3—6分贝之提高，对木墙筋隔墙则可有6—9分贝。

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Jared Crozier, 28, who didn't even bring his dB Drag car, drove 17 hours nonstop from Indiana to Daytona with his mother and younger brother to mingle with the sport's stars.

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