Wool will dissolve in caustic soda solutions that would have little effect on cotton.
在苛性钠溶液中羊毛会溶解，而苛性钠对棉的作用却很小。
2
Why does it take about 17 encouraging letters from readers to overcome the effect of one that is caustic and critical?
为什么需要17封鼓励的信才可以克服一封苛刻的批评信的影响？
3
Pros and cons as well as the effect of upgrading inferior FCC gas oils by caustic treating, hydrotreating, middle pressure hydro-upgrading and solvent refining etc.