Pipe shall be homogeneous throughout, free from cracks, holes or foreign material, and shall be free from blisters, dents, ripples, die and heat marks.

管子应通体均匀，无裂纹、无孔眼或杂质，还应无气泡、凹痕、波痕、拉模划痕和热痕。

youdao

Her face became purplish except for little, white marks over it that didn't heat up.

她的脸几乎变成了紫色，还有些白色的小斑点。

耶鲁公开课 - 1945年后的美国小说课程节选

The report does not take into account blistering heat from this month, with 2, 116 high-temperature marks either broken or tied between July 2 and July 8 in communities nationwide.

CNN: Northwest heat endangers crops