• 1. ultra pass: 高通
• 2. UP ultra pass: 高通
• 3. ultra-narrow band pass filter: 超窄带通滤光片

• 1.It was found that a great deal of ultra-fine grains appear in AZ91 just after one pass of ECAP.
  研究发现，AZ91镁合金经过一个道次的等通道角挤压后，材料中就有大量的超细晶粒出现。
  dict.yoduao.com
• 2.Allows 70% of natural light to pass through your Windows but rejecting up to 97% of infra-red heat and 99% of harmful ultra-violet rays!
  允许70%的自然光穿过您的玻璃，却要滤掉最高达97%的红外线热能和99%的有害紫外线！
  dict.yoduao.com

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