2) gray corrosion
灰色蚀斑
3) dark spots
深色斑点
1.
The causes of dark spots formed during recycling are analyzed and the methods for preventing dark spots are offered.
介绍了OCC中蜡与蜡基热熔胶的组成与性质,及其造成危害的过程,明确了挂面纸板产生深色斑点的原因,为预防深色斑点的出现提供了线索。
4) speck dyeing
斑点染色
5) mottled colour
斑点色
6) speck dyeing
斑点涂色
补充资料:斑点叉尾鮰