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whm0827

铜虫 (小有名气)

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The fixed volume enclosure shall be constructed with rigid panels that maintain a fixed enclosure volume, which shall be referred to as Vn. Vn shall be determined by measuring all pertinent dimensions of the enclosure including internal fixtures to an accuracy of ± 1/8 inch (0.5 cm) and calculating the net Vn to the nearest 1 ft3. The enclosure shall be equipped with an outlet flow stream that withdraws air at a low, constant rate and provides makeup air as needed, or by reversing the flow of air into and out of the enclosure in response to rising or falling temperatures.
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reko34

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whm0827: 金币+10, 翻译EPI+1, ★★★★★最佳答案 2014-06-17 11:43:15
具有固定体积的箱体应配备刚性板以维持固定的箱体体积Vn。确定Vn时应以±1/8inch(0.5cm)的精度测量箱体的所有相关尺寸,包括内部工装,计算净Vn至最接近的1ft3。箱体应配有通风功能,以低恒定速率抽出空气并补充需要的空气,或逆转进出箱体的空气以回应温度的涨落。
2楼2014-06-17 11:23:50
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