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...
Oil is not dissoluble in water.油不溶于水.The method of titrimetric analysis of dissoluble carbonate in water glass has been established.建立了水玻璃中可溶性碳酸盐的滴定分析法....
Many sulphides, selenides, and tellurides have the nickel arsenide's NiAs type of structure.许多硫化物, 硒化物和碲化物具有砷化镍NiAs型的结构.The material is a semiconductor called gallium manganese arsenide.这种材料是一种叫做镓锰砷化物的东东.This paper ...
Lots of pubs like to deck themselves out with flowers in summer.夏日里有许多酒吧喜欢用鲜花来装饰店面。Why do we pay to overheat pubs and hotels?为什么我们要为酒吧和宾馆不必要的暖气开支买单呢？Pubs are dirty, smelly and unfriendly, according to the Good Pub Guide....