工人们需要定期从炉中清除熟料。

Workers need to regularly remove the ___clinker from the furnace.

工人们用耐用的熟料铺设庭院。

The workers used durable ___clinker to pave the courtyard.

钢琴家弹奏了一个刺耳的错误音符，破坏了整首曲子的和谐。

The pianist played a sharp ___clinker that ruined the harmony of the piece.