1.
Blotchy brown brick houses.
一座座布满污痕的褐色砖房。
2.
Various dry, muddy smears on the palette confirmed this statement.
调色板上乱七八糟的污痕证实了这句话。
3.
The word has a negative connotation. "I know Will did all his chores, but he cut corners.
看看他床底下有多脏，还有窗户上那些污痕」。
4.
She tried to remove the mark from his jacket with a cleaning fluid, but it wouldn't rub out.
她试图用清洁剂来洗除他夹克上面的污痕，但擦洗不掉。
5.
"The tried to remove the mark from his jacket with a cleaning fluid, but it wouldn't rub out."
她试图用清洁剂来除他短上衣上面的污痕，但搓洗不掉。
6.
line left on a bath by the dirty water
（污水留在浴盆上的）垢痕.
7.
having the color spoiled with spots or streaks.
颜色被污点或者条痕破坏。
8.
Severe swirl marks or water spotting will require a fine rubbing compound followed by a good polish or swirl remover.
严重的涡痕和污渍要用化合物，而后用抛光剂或涡痕祛除器。
9.
Greg: Yes, look at these wine stains on the carpet and the scratch marks on the table.
格雷哥:没错。看地毯沾了酒污，饭桌也留下了划痕。
10.
Study on the Pollution of Toxic Organic Pollutants in Drinking Water Treatment in BeiJing;
北京市自来水中痕量有毒有机污染物的研究
11.
Enrichment,Separation,and Pollution Control of Ultra-trace Hexavalent Chromium for WEEE Directive
基于WEEE指令超痕量六价铬富集、分离及污染控制
12.
Technology of Concentrating Organic Compounds in Water by Solid Phase Extraction
固相萃取富集水中痕量有机污染物的技术探讨
13.
Aqueous Two-Phase Gas Floatation Spectrometric Determination of Trace Tetracycline in Sewage
双水相气浮浮选光度法测定污水中痕量四环素
14.
Determination of Cu,Zn,Pb,Cd and Ni in muddy soil by ICP-AES
ICP-AES法测定污泥中痕量杂质元素铜、锌、铅、镉、镍
15.
Study on the Separation and Concentration of Trace Organic Pollutants in Industrial Waste Water by Solvent Sublation;
溶剂浮选法分离富集污水中痕量有机污染物的研究
16.
Gear mark/streak:A dark colour line across the printed sheet.A defect caused by worn gears or dirts gathered on gears of a press cylinder.
墨条痕：横过纸面的一条深色墨痕。是印刷机上的圆筒齿轮因磨蚀或污物堆积所引致的故障。
17.
Georgina:I know, they'll be almost impossible to get rid of completely.
乔治娜:我早看到了。要把酒污、划痕完全除去，几乎是不可能的。
18.
Steel surface should be clean, not a scar on the major surface structures, such as silt dirt.
钢结构表面应干净，结构主要表面不应有疤痕、沙等污垢。