格雷汉姆的主要产品是真空喷射器、液环泵、冷凝器等以及整套真空系统， 在全球多个工业领域有着广泛的应用。
Graham major products are the ejectors, liquid ring vacuum pumps, condensers, heat exchangers, and complete vacuum systems used every day by people throughout the world.
改进后的水力喷射器在运行过程中对于提高真空度，减少热损失，增加排容，都起到了显著的作用，极大地提高了整个蒸发装置的生产能力。
The hydraulic injector modified had so noticible effect on increasing vacuum and decreasing heat loss that the productivity of the whole evaporation equipment rose sharply.
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