Permanent markers normally have acrylic polymers, which have chains based on acrylic acid.

永久性记号笔通常含有丙烯酸聚合物，其化学链以丙烯酸为基础。

Like the smell of gasoline or permanent markers?

喜欢汽油味或永久性马克笔的味道吗？

Yesterday, Manny drew a self-portrait on my bedroom door in permanent marker.

昨天，曼尼用那种擦不掉的彩笔在我卧室门上画了一幅自画像。

And feel free to ask for a permanent marker drawing on your body.

放心地去要求医生用记号笔在你身上画记号。

The ingredients of a dry erase marker aren't actually all that different from a permanent marker.

干擦记号笔的成分其实与永久性记号笔没什么不同。

The ingredients of a dry erase marker actually aren’t all that different from a permanent marker.

干擦记号笔的成分实际上与永久性记号笔没有什么不同。

But the key difference between permanent and dry erase markers is the third thing: the polymers.

但永久擦除记号笔和干擦记号笔之间的主要区别在于第三点：聚合物。

Late pathological Q waves are a permanent marker of such an MI on the patient's subsequent ECGs.

晚期病理性Q波是患者随后ECG上心肌梗死的永久性标志。

The traditional view of pathological Q waves as a late and permanent marker of irreversible myocardial death has been modified in recent years.

传统病理性Q波作为不可逆性心肌死亡的晚期和永久性标志物的观点近年来得到了改变。

Today, there's only a light scar where the tattoo once was, so I've redrawn it in permanent marker so you can see what it looked like.

今天，曾经纹身的地方只有一个浅疤痕，所以我用永久性记号笔重新画了它， 这样你就可以看到它的样子了。