retarder
US /rɪˈtɑːrdər/
UK /rɪˈtɑːdə/
名词
缓凝剂, 阻滞剂
a substance that slows down a chemical reaction or other process
示例:
•
The chemical acts as a retarder in the setting of concrete.
这种化学物质在混凝土凝固过程中起缓凝剂的作用。
•
They added a flame retarder to the fabric.
他们在织物中加入了阻燃剂。