（3）点燃源（source of ignition）：包括明火、电气火花、机械火花、静电火花、高温、化学反应、光能等。易爆物质：很多生产场所都会产生某些可燃性物质。
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potential source of ignition 潜在着火源
fixed source of ignition 固定火源
possible source of ignition 可能的着火源
a source of ignition 引燃源
ignition of source 火源
·2,447,543篇论文数据，部分数据来源于NoteExpress
Personnel should stay in a well-ventilated area and avoid any source of ignition until their clothing is completely free of any excess oxygen.
人员应一直呆在通风良好的区域，避开任何火源，直到他们的衣物彻底没有任何多余的氧为止。
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As part of their investigation, Japanese and U.S. experts want to determine if an internal battery failure, or defective lithium-ion cell, was the ignition source in either of the two incidents.
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