knock limit meaning in English

爆燃极限
燃烧极限，燃烧界限
燃烧界限

Klcr knock limited comperssion ratio
敲缸极限压缩比
Klsa knock limit spark angle
爆震极限点火提前角
The indirect answer to this question is simple ; the peak cylinder pressure is not allowed to exceed the mechanical limitation of the engine parts or the knock limit of the fuel , which ever comes first
婉转的针对这个问题回答,汽缸压力的峰值不能超过引擎机械零件本身的限制或汽油爆震的极限,以上两个状况何者先出现,就是极限的发生时机