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汉语拼音：huī gòu

1.尘垢。

1. 尘垢。

   臧克家 《谢谢了，国大代表们》诗：“我们情愿身上的灰垢蓄一寸厚，也把澡堂子让出来，叫你们躺在那儿多多休息一会儿。”

• A simple method that using ordinary water to wash the dirt on dowtherm boiler coil pipes and air preheater was introduced.

  介绍热媒炉盘管和空气预热器用清水冲洗灰垢这一简易方法来提高热效率。

• 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。

• Measuring the ultrasonic attenuation coefficient of flyash scale in the transport pipeline

  输灰管灰垢声衰减系数的测定

• Research on Effective of Corrosion of Fused Ash

  稀土添加剂对减缓灰垢腐蚀的作用研究