When not removed, plaque causes tooth decay and gum disease.牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。There are problems of urban decay and gang violence.存在城市衰败和帮派暴力的问题。The phosphate was deposited by the decay of marine microorganisms.海洋微生物腐...
Some utensils were in a state of decay when they were unearthed.有些器皿在出土时已经残破.The house is in decay.这栋房子已经坏了。There are problems of urban decay and gang violence.存在城市衰败和帮派暴力的问题。Our powers decay in old age.我们的体力在老年时就衰退。...d...
Some galleries commemorate donors by inscribing their names on the walls.一些美术馆把捐赠者的姓名镌刻在墙上以示纪念。They kept records by inscribing words on those materials.他们在这些材料上刻字来记录信息.At the end, we built experimental installation for i...
焊核区晶内有少量位错.The dislocation density is low in the nugget zone.回顾和评述了晶内铁素体的发现、发展及其与组织控制的关系.The discovery and current advances of intragranular ferrite and its relation with microstructure control are reviewed.电子屏蔽理论分析表明,电场...