这是法国洗衣房的真空密封系统。
在真空排气系统中，必须引蒸汽到汽轮机主轴迷宫式密封，以防真空损失。
In a vacuum exhaust system, sealing steam to the turbine shaft labyrinth seals must be admitted to avoid loss of vacuum.
特别设计的工艺，充分体现了两支轴的良好同心，热媒及真空系统均采用可靠的机械密封或美国技木的旋转接头。
The specially designed process fully shows the good concentricity of the two shafts. Thermal media and vacuum system all adopt reliable mechanical sealing or rotating connector of American Technology.
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