1.
The chimney is almost choked up with soot.
烟囱几乎被烟垢堵住了。
2.
The chimney is almost choked with soot.
烟囱几乎被烟垢堵塞了。
3.
Discussion on fouling blocking in wet limestone-gypsum technology FGD
石灰石—石膏湿法脱硫中结垢堵塞等问题的探讨
4.
Preliminary Discussion on the Troubleshooting of Effect V Evaporator Tube Plug
浅谈制盐V效蒸发罐结垢堵管的原因及防治
5.
The skin is smooth, tender and velvety after showering. There is no scale like tiny grit to jam the pores of the skin.
沐浴后肌肤光滑柔嫩，自然亮泽，不会再有象细小沙砾一样的水垢堵塞毛孔。
6.
Cause Analysis and Measures for the Begriming Matter and Blocking Pipes on the Bishiff Gas Treating System of the Blast Furnace
高炉比肖夫煤气处理系统积垢与堵管原因分析
7.
Flush the lines to remove all loose scale, dirt and other foreign matter that can damage or clog the valve.
冲洗管线，清除可能损坏或堵塞阀门的所有疏松的氧化皮、污垢和其它外来物质。
8.
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
9.
tapped and plugged
车出螺纹用堵头堵上的
10.
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）
11.
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
12.
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
13.
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
14.
Scale Inhibition Performance of HPMA-EDTMPS Compound Scale
HPMA和EDTMPS复合有机阻垢剂的阻垢性能
15.
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
16.
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
17.
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
18.
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