“bottom pouring”可以造什么句，bottom pouring造句

In bottom pouring, the molten steel is poured into a central trumpet, from where it flows through runners to the bottom of a number of ingot moulds. The steel rises slowly in the moulds without turbulence.

In bottom pouring, the molten steel is poured into a central trumpet, from where it flows through runners to the bottom of a number of ingot moulds.