求翻译：唇焊所涉及的截止阀和逆止阀大部分为核岛阀门，很多设备所处的位置放射性水平很高，按照厂家所提出的检修方案，在进行阀门切割及恢复焊接的过程中都会明显增加维修人员的受照剂量。是什么意思？

Most of the welding involved lip cut-off valve and check valve the nuclear island valves, a lot of equipment in which the position of high levels of radioactivity, in accordance with the manufacturers maintenance program, during valve cutting and recovery of welding process will be significantly inc

Solder the lip of the shut-off valves and valve counterclockwise to the island most valve, the device has a lot of radioactive level is very high position, and in accordance with the manufacturer of the Access Program, and the recovery to valve cutting welding process will be significantly increased

The lip welds the cut-off valve and the check valve which involves majority of for the nuclear island valve, very many equipment locate the position radioactive level is very high, proposes the overhaul plan according to the factory, in carries on the valve to cut and restores the welding in the pro

Lip welding involves most of the valve and check valve for valves for nuclear Island, where many devices of radioactive high level, in accordance with the manufacturer's maintenance programme, valve in the process of cutting and restoration of welding will significantly increase the dose of maintena

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