Mould the mixture into shape while hot, before it hardens.
在混合物变硬之前，趁热将其塑造成形。
《柯林斯英汉双解大词典》
2
The deadline for the project was getting closer, so I tried to speed up the drying of the mould with hot air.
这个项目的最后期限越来越近了，所以我加快速度，用热空气把模具吹干。
3
It is ideal for sealing all the random gaps between dummy bar head and mould copper plate, to prevent the hot metal infiltration and break out while casting.