利用箱式电阻炉、自行研制的高精度程序控制深冷箱对比，研究了热处理工艺和深冷处理工艺对2a11铝合金样品尺寸稳定性的影响。
The effects of heat treatment and cryogenic treatment on dimensional stability of al alloy 2a11 were studied using a box-type electrical resistance furnace and a cryogenic box with program control.
深窗孔从这种表皮中穿透，并由深黑色金属面板抵消的浅钢箱连接。
Deep window apertures are punctured through this skin and articulated by steel shadow boxes offset by dark black metal panels.
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