At different time, particles with different sizes can hit different locations on the wall, which are mainly at the connective part of shell and nozzle and out the convergent section of nozzle.

在不同的时间下，不同尺寸的颗粒会撞击壁面不同的位置，但主要集中在壳体与喷管的相接部分和喷管的收敛段。

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Local stresses at shell around attachments such as nozzle, vessel support and lifting lug and so on, shall be calculated and evaluated when requested by Purchaser.

如买方有要求，设备口、容器支架及吊耳等附件周围壳体的局部应力应加以计算及估测。

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The paper introduced briefly produce quality control in pressure vessel′s shell and manhole nozzle welding, how avoided crack and found defect by ultrasonic testing after welding.

介绍了压力容器人孔接管与厚壁筒体相焊时，如何控制产品的质量，避免产生裂纹，焊后通过超声波检测及时发现缺陷。

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