The problem that salt accumulating on the top of fractionating column is solved by water-washing on line with good result.

介绍了大连石化公司三催化装置分馏塔结盐情况，对结盐现象进行了分析，通过采取在线水洗措施解决了塔顶结盐问题，取得了好的效果。

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She put her washing on the line.

她把洗好的衣服晾在绳子上。

《柯林斯英汉双解大词典》

The clothes on the washing line were frozen stiff.

挂在晾衣绳上的衣服冻硬了。

《牛津词典》

Using drones, they studied the occupants and counted laundry on the washing line to guess how many adults lived in the house.

ECONOMIST: One year on, the story makes for a gripping read

On individual credit, the annual IOF rate will fall from 3% to 2.5% per year and Brazil is also back to cutting the Industrialized Products Tax (IPI) on white line goods such as refrigerators and washing machines.

FORBES: Brazil Cuts Taxes As Economy Slows