burn mark

基本解释

The black mark on the right side is the effect of the lamp burning the LCD screen.
在右边的黑色标志，是燃烧着的液晶屏幕灯的效果。
With certain gasification method, one or two kind of gases near to the exit, which can uniquely mark the burning state of the gasification workplace, is called "mark gas".
在气化方法一定的条件下，出口煤气中的某一气体及其变化，能够唯一标明气化工作面的燃烧状态，这类气体称之为“标志气体”。
It is a mark of how regular disruption has become that students streaming in from the nearby station scarcely turn their eyes to see their peers protesting and burning flares.
而从附近车站进出的学生甚至看都不看他们同龄人的抗议和燃烧烟雾弹的行为，足以看出这样的混乱是多么的频繁。

Around the world today, sirens are sounding, candles and torches are burning, and people are gathering to pray and mark Yom Hashoah, the "Day of Remembrance" of the Holocaust.
NPR: Remembrance, Reconciliation on Yom Hashoah