电磁继电器触点的碰撞接触及所引起的回跳是影响继电器可靠性与电寿命的重要因素。
The collision of electromagnetic relay contacts and corresponding bounce have a strong influence on relay reliability and electrical life.
介子由于其寿命小于碰撞中心区火球的寿命，可能反映高能重离子碰撞中心区的物质形态信息而被寄予厚望，受到广泛关注。
Rho meson gets quite much attention and is expected to carry information about the central fireball formed in the heavy ion collision, because its lifetime is shorter than that of the fireball.
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