The reason and measure prevented the structure from cracking in welding and machining aluminium alloy frame and shell of apparatus box are discussed in the paper.
介绍复杂结构铝合金仪器箱体焊接及机加工中出现裂纹的原因及防止措施。
The grating ruler support plate is connected to the grating ruler. The grating reading head is connected to the reading head stent and the electrical apparatus box.
光栅尺托板连光栅尺、光栅读数头分别连读数头 支架和电器箱；
Developer supply box, developer receiving box, operating box and imaging apparatus.
显影剂供应盒，显影剂接收盒，操作盒和成象装置。
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