In addition , lapping agent and erodent are kept from contaminating samples during grinding and erosion.能够防止样品在研磨和侵蚀的过程中研磨剂和腐蚀剂的污染.In lapping up a fur, they always put the inner side outwards.卷毛皮时, 他们总是让内层朝外.He was caugh...
an overemphasis on curing illness rather than preventing it过分强调治病而不事预防A doctor's life is consecrated to curing sick people.医生献身于医治病人。Slow, careful curing of the concrete improves the hydration of the cement.混凝土的缓慢而精...