求翻译：充分预热后，用适配细焊丝（不能使用电焊条），施分层修磨（焊接层次2～3层，控制好电流，不宜一次大电流焊满），气体保护焊，补焊裂纹。如图1所示是什么意思？

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After full preheating, (cannot use welding rod) with the adaptive thin welding wire, executes the lamination sharpening (welding level 2~3, controls good electric current, not suitable big electric current welds fully), shielded welding, patching crack.As shown in Figure 1

After full warm up, use fine wire adapter (do not use electrodes), layered dressing (welding level 2~3 level, control the current, not a high current welding), gas shielded arc welding, welding cracks. As shown in Figure 1

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