All welds for nozzles and manways shall be full penetration through the vessel wall.

接管和人孔的焊缝应为穿过容器壁的全熔透。

youdao

The inlet pipe penetration into the vessel, the pressure drop across any block valves used. upstream of the venting device, and the inlet piping must be considered when determining these losses.

对与容器连通的进口管，要使用其通过阻断阀时的压力降。在确定这些压损时，必须要考虑进口管线和放空装置的上游线路。

youdao

According to penetration data required from test, this paper has finished the test re search that welding groove types and dimensions of pressure vessel effect the SAW's penetration.

本文根据实验测得的熔深数据完成了焊接坡口形式与尺寸对埋弧焊熔深影响的试验研究。

youdao