Introduce the effect of using chemistry coloring agent quit scale. It solve boiler run off water question and supply well guard effect for the boiler ensure safety in production.

介绍锅炉给水化学变色防垢剂的使用效果，解决了锅炉失水严重的问题，为锅炉安全运行起到了良好的作用。

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Mr. Ying is well-known for his portrayal of a prison guard in the film "The Last Emperor."

英先生因在《末代皇帝》中扮演一个监狱看守而出名。

《柯林斯英汉双解大词典》

There's a Coast Guard building and a tall trade tower, as well as a park, golf course and university.

这里有一个海岸警卫队大楼和一座高耸的贸易塔楼，还有一个公园、一个高尔夫球场和一所大学。

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While clean-up continues in Louisiana,Alabama and Mississippi, officials in Florida are watching to guard against oil damage here as well.

VOA: standard.2010.07.05

The 6-foot-5, 310-pound Aboushi could play at right and left tackle, as well as potentially guard.

WSJ: Jets draft O-linemen in 5th, 6th rounds

The 6-foot-5, 310-pound Aboushi will work at left and right tackle, as well as potentially guard to add depth to the offensive line.

WSJ: Jets sign O-linemen Aboushi, Campbell

This is because of a vigilant, well-trained guard force, charged with the safe, humane custody of the detainees and because of that force's ability to rapidly and properly respond.

NPR: Guantanamo Detainees Attempted Mass Suicide in 2003