The bars are often suspended in a vacuum and kept at low temperatures to reduce noise.
铝棒一般放置在真空中，并保持极低的温度以抑止噪音。
One jamming technique was to blind the other's radar receiver by transmitting noise, pulse bars (railings) or other disruptive patterns.
此中一种干扰技巧是向对方的雷达接管器发送噪音，光栅或其他式样的杂波使其瞎失落。
The location of the hotel is extremly nice, very near to the bars but we didn't hear any noise.
酒店位置也很好，离后海的酒吧很近，但是却感觉不到吵闹。
The location of the hotel is extremly nice, very near to the bars but we didn't hear any noise.
酒店位置也很好，离后海的酒吧很近，但是却感觉不到吵闹。
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