消声器muffler；sound absorber；deafener

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• 消声量sound deadening capacity

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• Strong smelling cargo should be stowed（）the cargo absorbing foreign smell.

  A . together with B . on top of C . underneath D . away from

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• In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the（）.

  A . compressor B . condenser C . receiver D . evaporator

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• 抗性消声器reactive muffler

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• 阻性消声器resistive muffler

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• 阻抗复合消声器impedance muffler

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• Muffler的中文含义是（）。

  A . 共振器 B . 消音器 C . 触媒转换器 D . 含氧传感器

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• Diesel engine mufflers accomplish noise reduction by （）

  A . reducing exhaust gas velocity B . increasing the frequency of gas vibration C . the use of long head pipes D . the use of zinc electrode

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• 微穿孔板消声器micropunch plate muffler

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• A dry-type exhaust muffler clogged with soot, will cause（）

  A . low exhaust temperature B . loss of engine power C . burned intake valves D . engine racing

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• Diesel engine exhaust noise can be reduced in an exhaust muffler by （）

  A . changing the direction of exhaust gas flow B . increasing the exhaust gas velocity C . changing the exhaust gas weight D . increasing the exhaust gas static pressure

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• Diesel engine mufflers or silencers reduce the engine exhaust noise by （）

  A . passing the exhaust through long head pipes B . diffusing exhaust vibrations through activated carbon baffles C . increasing the exhaust gas velocity D . reducing the exhaust gas velocity

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• The real power absorbed by a capacitor is zero. (a) (b)

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• intestinal cells absorb aa and peptides. these cells finish splitting peptides into individual aa.

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• 5、 Time passes quickly when you are absorbed _____ reading a good book 。

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• absorbed

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• Moisture absorbed in the winding or condensed on the surface of electrical machinery nsulation

  A.is good for long term preserving since most insulation is organic and contains some amount B.lowers the insulation value and is a common cause of fault grounds in idle machines C.will enhance insulation resistance only if it is no salt D.reduces the amount of current supplied or drawn by the machine so horsepower is limited

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• So absorbed as he is that she did not dare to make a sound.

  A．他那么聚精会神，她不敢说一句话。 B．他那么吸引人，她不敢弄出一点声音。 C．他那么聚精会神，她不敢弄出一点声音。 D．他那么吸引人，她连一句话都不敢说。

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• Olestra can pass through the intestines without being absorbed.

  A．Right B．Wrong C．Not mentioned

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• Some individual vitamins are better absorbed than others in a tablet form.

  A．YES B．NO C．NOT GIVEN

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• 华为智慧屏S系列搭配的Huawei Sound智慧音响有以下哪些特点？A.4*10W的大功率扬声器单元

  B.号角式扬声器专利设计 C.音腔容积1L的独立音腔 此题为多项选择题。

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