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。
Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.
打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。
Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.
打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。
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