1. The second set consisted of patina ― a chemical film encrustation on one of the limestone boxes. 第二套样本中包含有铜绿――在一个石灰石盒子上附着的一种化学物质。
2. Maybe his recent saltwater dunking and ice encrustation had caused a problem in the MJOLNIR system. 或许是近期的盐水浸泡和冰冻使雷神锤盔甲出了问题。
3. The disadvantages are mainly high equipment costs and plugging of the lines by sediment, salt encrustation, or algae. 缺点主要是设备费用高，管道易被泥沙、盐分结晶或藻类植物堵塞。
4. The problem of the heat power house pipe encrustation filthiness influences the normal running of dynamotors seriously. 热电厂输灰管道结垢问题影响发电机组的正常运行。
5. If only want to remove sand, rust, without considering removing encrustation, bacteria can use water purification devices. 如果只是想去除泥沙，铁锈，而不考虑去除水垢，细菌，可以用净水器。
