第一盏灯：位置在左上方 (-1, 2, 4)，负责照亮物体的正面。
Exact ID match — same entity in before/after = modified or unchanged
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9月10日——罗永浩吐槽西贝预制菜事件
Regulating the dose remains one of the biggest technical hurdles in FLASH. The ionization chambers used in standard radiotherapy can’t respond accurately when dose rates spike hundreds of times higher in a matter of microseconds. So researchers are developing new detector systems to precisely measure these bursts and keep pace with the extreme speed of FLASH delivery.