hob testing machine

例句：

1. 1.This hob testing machine is used to check the quality of cast iron.
   这个火炉测试机用于检查铸铁的质量。
2. 2. The engineer was using a hob testing machine to measure the temperature of the metal.
   工程师正在使用火炉测试机测量金属的温度。
3. 3.The manufacturer claims that their hob testing machine is more accurate than any other brand.
   制造商声称他们的火炉测试机比任何其他品牌都要准确。