国标消声器系列
六级考试时间分配
Muffling ries accord to national standard
一对一口语英语音标课程教学视频Page33
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ZP型片式管道消声器采用离心玻璃棉作为吸声材料，片式结构，具有高度小，消声频率宽，结构简单等特点。产品有效长度一米，两端配有变径管和标准法兰，zP型片式消声器系列分为ZPl00型，ZP200型，消声量可达1 6dB(A)-25dB(A)。the roommate
Centrifugal glass wool is the absorb－ing nois material in the ZP type muffl－ing which has a laminated structure with low highness，wide muffling frequency and simple structure．Valid length of this product is 1 meter equipped with pipe of different diameter and standard flange at both ends．ZP laminated muffling includes ZP100，ZP200 two types．The volume of muffling can reach
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16dB(A)-25 dB(A)．春节小品大全
帝国主义的意思ZP100型片式管道消声器系列参数表Parameter table
杏子的英文>desolate
