n.催速（催化；加速；促进；促凝；触媒）剂

The police suspected that an accelerant had been used to spread the fire quickly through the building.
警方怀疑有人使用助燃剂加速了火势在大楼内的蔓延。
The use of accelerants in arson cases can often be detected through chemical analysis of fire debris.
在纵火案件中，通过分析火灾残骸中的化学物质可以检测出是否使用了助燃剂。
In forensic investigations, accelerants are sometimes found in suspicious fires to determine if they were intentionally set.
在司法调查中，有时会在可疑的火灾现场发现助燃剂，以确定火灾是否是人为故意引起的。
The firefighter noticed the presence of an accelerant on the floor near the origin of the fire.
消防员注意到起火点附近地面上有疑似助燃剂的痕迹。
It's crucial for firefighters to wear protective gear when dealing with fires involving accelerants to avoid chemical burns.
处理涉及助燃剂的火灾时，消防员佩戴防护装备至关重要，以避免化学灼伤。
The accelerant detection dog was able to pinpoint the exact location where the fire starter poured the accelerant.
助燃剂检测犬能够准确找到纵火者泼洒助燃剂的确切位置。
The forensic chemist testified that the presence of gasoline indicated that it was used as an accelerant in the arson case.
法庭上的法医化学家作证说，汽油的存在表明它被用作纵火案中的助燃剂。
The accelerant in this fire was identified as kerosene, which is commonly used as a heating fuel but also as a dangerous accelerant in arson cases.
这场火灾中的助燃剂被确认为煤油，它通常作为取暖燃料使用，但在纵火案中也可能成为危险的助燃剂。
The investigation team used gas chromatography to analyze samples from the fire scene and identify the type of accelerant used.
调查小组使用气相色谱法分析火灾现场的样本，以确定使用的助燃剂类型。
After the fire was extinguished, the accelerant was carefully removed from the scene and sent to a laboratory for further analysis.
火灾扑灭后，助燃剂被小心地从现场取出并送往实验室进行进一步分析。