工作冷槽：不锈钢冷槽，双层真空玻璃观察窗。
Of working cold trough: stainless steel cold trough, the double-layer vacuum glass observation window.
真空泵油窗部位也要留出适当的空隙排除废气。
Vacuum pump oil window parts Yaoliu Chu also excluded from the appropriate gap.
细长喷嘴可从真空室沿着纵轴延伸并具有喷嘴上部的出射窗。
An elongate nozzle can extend from the vacuum chamber along a longitudinal axis and have an exit window at a distal end of the nozzle.
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