hafnyl

例句：

1. 1. The chemical was used in the manufacturing process.
   这种化学物质用于生产过程中。
2. 2.It's important to handle this chemical with care.
   小心处理这种化学物质很重要。
3. 3. The fumes from the reaction were hazardous and had to be vented.
   反应产生的气体是危险的，需要排放。