1.
Research on Anti-Corrosion and Anti-Encrustation Process for Oil and Water Well Drill Rod;
油水井筒腐蚀结垢及防垢除垢工艺研究
2.
metal cleaning for rust prevention(chemical cleaning of steel products)
防锈用金属除垢方法（铁德化学除垢法）
3.
Evaluation on the Scale Inhibitive Performance of PAA-Static Anti-Scaling Method
聚丙烯酸阻垢性能的评定——静态阻垢法
4.
Dynamic Research of CaSO_4 Scaling and Inhibition in RO Systems;
反渗透系统中CaSO_4结垢和阻垢动态研究
5.
Research on the scaling reasons and prevention of Wangxin 25 well;
王新25井结垢原因分析及防垢研究
6.
Scale Inhibition Performance of HPMA-EDTMPS Compound Scale
HPMA和EDTMPS复合有机阻垢剂的阻垢性能
7.
Synthesis of New Scale Inhibitor ASV and Study of its Scale Inhibition Effect
新型阻垢剂ASV的合成及阻垢性能研究
8.
Prediction Model of Precipitation Fouling Process in the Heat Exchanger
换热器中析晶垢结垢过程的预测模型
9.
Black dirt or soot, especially such dirt clinging to or ingrained in a surface.
污垢，灰垢黑色脏物或煤灰，尤指附着或深嵌在一个表面上的污垢
10.
Comparison of Evaluation on Scale Inhibiting Performance Base on Conductivity Method and Static Method
电导法与静态阻垢法测定阻垢剂阻垢性能的比较研究
11.
His face was covered with grime.
他的脸上满是污垢。
12.
Dirt glitter when the sun happen to shine.
太阳照耀下，污垢也闪光。
13.
grimy hands, windows
沾满污垢的手、 窗户.
14.
Mother was in the garage, brushing the dirt aside
母亲在车库里清扫污垢。
15.
a face covered with grime and sweat
满是污垢和汗水的脸.
16.
soiled with dirt or soot.
被污垢或者煤烟污染。
17.
prevention of scale in boilers
防止锅炉内水垢的产生
18.
Dirt gets rolled up in your navel.
泥垢总是积在肚脐眼里。