Peumatic element and main air cylinder are importation and Yadeke.
气动元件及主要动作气缸为进口和亚得克.
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The fume caused by coal burning is one of the main air pollutants in China.
燃煤烟尘是我国最主要的大气污染物之一.
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NATO officials say a Russian - built helicopter crashed while taking off from Kandahar's main air base.
北大西洋公司官员说这架俄国造的飞机在坎大哈主空军机地起飞过程中堕毁.
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Thus combination of the two technologies will be one of the main air interface schemes.
二者的结合将成为后三代移动通信系统空中接口的主要方式之一.
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