encrustation

1. (长时间形成的)外皮，外壳，沉积物
   An encrustation is a hard and thick layer on the surface of something that has built up over a long period of time.

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. 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。
3. They view the common market as a pearl surrounded by a dismal encrustation of European bureaucracy and regulation.
   在他们看来，统一市场就如同被欧洲的官僚机构和法律规章所形成的一层硬壳包裹起来的一颗珍珠。
4. In rough-set theoretic sense, the histogram correlates with the lower approximation and encrustation of histogram correlates with upper approximation.
   从粗糙集理论意义上来说，直方图的外层与上近似有关，而直方图取值与下近似有关。
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。
6. By extracting encrustation of histogram, and calculating partial fuzzy extent around pixels to update the fuzzy roughness.
   通过提取直方图的外层，以及计算像素点周围的局部模糊程度来更新粗糙度。
7. The Study on Risk Factors for Catheter Encrustation in Long-term Catheterized Patients
   长期留置导尿管病人导管结壳危险因素的研究
8. 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。
9. Study on anticorrosion and lessening encrustation of the gas heat exchanger
   煤气热管换热器防腐减垢的研究
10. Study on Preventing Boiler Encrustation while Overload Operation
    对防止供热锅炉超负荷运行结垢的研究
11. In this paper the EDTA coordination method for eliminating high-silicon encrustation is advanced, which has overcome the shortage in the purging process with the traditional acid of basic method.
    本文提出一种清洗高硅垢的EDTA配合法，克服了传统的碱法和酸法清洗过程中存在的不足。
12. The method has the advantage of low operation temperature, non-corrosion to equipment, good results for eliminating encrustation and so on.
    该方法具有操作温度低、不腐蚀设备、除垢率高等优点。
13. Effects of soil encrustation on rainfall infiltration, runoff and sediment generation
    土壤结皮对降雨入渗和产流产沙的影响
14. The experiment result shows that, with the increase of blade elevation angle, SO 2 removal efficiency and the operation stability will be descended, the amount of encrustation will be increased.
    结果表明，一般情况下，叶片仰角增大，脱硫率有所下降，塔的运行稳定性有所下降，结垢有所增加。
15. Cone Initiation and Development, and Phenology Studies on the Cleaning of High-ferro Mixed Encrustation
    侧柏球花的发端发育及物候学高铁混合垢化学清洗技术
16. Studies on the Cleaning of High-ferro Mixed Encrustation
    高铁混合垢化学清洗技术
17. The results show that the treating device has the functions of encrustation suppression, slow corrosion and bactericidal action.
    结果表明，该处理器有明显的阻垢、缓蚀及杀菌功能。
18. Low-concentration SO2 flue gas is usually treated by Limestone-Gypsum desulfurization technology. However, this method has some disadvantages, such as requiring large investment, suffering serious encrustation, recontamination of wastes from the desulfurization process.
    低浓度二氧化硫烟气一般采用石灰石-石膏法处理，但是该方法存在投资大、设备结垢严重、废弃物二次污染等问题。

noun

1. a decorative coating of contrasting material that is applied to a surface as an inlay or overlay

   Synonym:    incrustation

2. a hard outer layer that covers something

   Synonym:    crustincrustation

3. the formation of a crust

   Synonym:    incrustation