最后，利用DYNA3D程序就保护环倒角变化对金属圆管对碰区壳体破裂的影响特征进行了初步分析。

The LS-DYNA3D code was used to analyze the influence of guard ring's fillet on deformation characteristics of metal tube.

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所有的实习孔倒角对内部的优势，以防止破坏O型环在安装过程中的喷嘴和舱壁见工程。

All of the attachment holes are chamfered on the inside edges to prevent damaging the O-rings during installation of the nozzle and bulkhead see Eng.

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止动槽和紧邻的倒角（图20）尺寸符合1995年的ISO464标准，该标准还规定了适当的止动环尺寸。

The dimensions of the snap ring groove and of the chamfer adjacent to the groove (fig 20) are in accordance with ISO 464:1995, which also specifies suitable snap ring dimensions.

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