bell valve

常见例句

双语例句

• The blast furnace top with two bells and one seal valve is a better bell-valve type top in com-parison with other ones.
  双钟一阀式炉顶是一种较好的钟阀式炉顶。特点是密封阀的数量最少，处在温度较低的顶部，检修更换方便。
• The bell , valve and fire duct are important equipments to guarantee the production of blast furnace in the first iron mill of Jinan Iron and Steel Group Co.
  济钢第一炼铁厂高炉料钟、放散阀、火管是维系高炉生产的重要设备，其寿命成为制约高炉技术经济指标提高的瓶颈。
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