... alphatronα 电离真空计，α粒子电离压力计 alsimag 铝硅镁合金(一种高频绝缘材料) alt-alt telescope mounting 卧轴–卧轴型望远镜安装结构 ...
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铝硅，抗裂性好，通用性大。铝合金焊接用，不宜焊接铝镁合金。
Silic aluminum, good crack resistance and wide range of usage. Welding of aluminum alloys other than aluminum magnesium alloys.
铝硅，抗裂性好，通用性大。铝合金焊接用，不宜焊接铝镁合金。
Silicon aluminum good crack resistance and wide range of usage. Welding of aluminum alloys other than aluminum magnesium alloys.
铝硅，抗裂性好，通用性大。铝合金焊接用，不宜焊接铝镁合金。
Silicon aluminum, good crack resistance and wide range of usage. Welding of aluminum alloys other than aluminum magnesium alloys.
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