3504| 6
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推進器噴管壁厚多少比較合適? |
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點評
這個壁厚取值得有根據(jù),不能隨口一說。你說是內外兩個,據(jù)我所知,超音速噴槍的槍管剛好是這樣,中間是空氣冷卻,外管是鋁合金陽極氧化的,壁厚好像是兩三個吧。
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