The Model 20 Volume Booster is a smaller pneumatic device capable of high flow and exhaust capacity.

示范20卷，是一个较小的助推器气动装置的高流量和排气能力的能力。

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The latest style large capacity muffle with special structure has reduced the noise of exhaust gas. A larger air filter is employed to reduce the noise of suction gas.

新型大容量和特殊内部构造消音器降低了排气噪音。采用较大的空气滤器减少了进气噪音。

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The experiment results showed that, at elevant environmental temperature, the exhaust fan can reduce effectively the battery temperature and increase the battery capacity.

试验结果表明：在环境温度较高时，这种散热风扇能有效地降低电池组的温度，提高电池组容量。

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If anything, Porsche has managed to dial up the immediacy of the 911, with quicker reflexes the electrical steering is first-rate a more emotional exhaust note and, at full throttle, the capacity for real, edgy violence.

WSJ: 2012 Porsche 911 Carrera S Review: A Magnificent First Stab | Rumble Seat by Dan Neil