- 1. Meanwhile the pions quickly decay into mu mesons, or muons, which penetrate to the ground.
- 同时，介子会快速衰变成缈子抵达地面。
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- 2. When the particles crash into the Earth's atmosphere, they create showers of secondary particles called muons.
- 当粒子撞击地球大气层时，它们就会产生次生粒子(称为介子)簇射。
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- 3. Because they had a speed close to that of light, they took thirty times longer to disintegrate than muons that just sit still in the laboratory.
- 因为它们有着与光速非常接近的速度，所以它们的衰变时间是实验室里静止的介子衰变时间的30倍。
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- 4. The efficiency, output charge and time resolution were measured by cosmic muons when the detector was operated with F134a rich mixture in avalanche mode.
- 采用大含量氟利昂气体，用宇宙线测量该探测器的探测效率，输出电荷，时间分辨。
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- 5. The efficiency, output charge and time resolution were measured by cosmic muons when the detector was operated with F134a rich mixture in avalanche mode.
- 采用大含量氟利昂气体，用宇宙线测量该探测器的探测效率，输出电荷，时间分辨。
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