我们认为真空器件的设计与制造是一种高度专门化的技术。从事这项工作的人员必须具有丰富的物理学知识,也必须懂得一些诸如化学、冶金学、气体动力学和材料特性等其他学科。清洁对于制造合格管的密切关系尚未完全探索出来。现在我们懂得必须寻找一种超过外科医生与微生物学家所要求的清洁度。管内结构必须比无菌要求高得多;同时,它们必须不 We believe that the design and manufacture of vacuum devices is a highly specialized technology. People in this job must have a wealth of knowledge of physics and must understand other disciplines such as chemistry, metallurgy, gas dynamics and material properties. The close relationship between cleanliness and the manufacture of qualified pipe has not yet been fully explored. Now we know we have to find a way to go beyond the cleanliness required by surgeons and microbiologists. In-tube structures must be much higher than sterility requirements; at the same time, they must not