应采用低氢焊条焊接厚钢板与铸钢件和高强度板间的连接。
Low hydrogen electrode to be used for welding thick steel plate to casting and high tensile plates.
在金属的焊接和切割中氢也有应用。
Some use of hydrogen is made in the welding and cutting of metals.
在役焊接过程中，管内流动介质的快速冷却，易使接头出现氢致裂纹。
Because of the fast cooling of flowing medium, the hydrogen cracking occurs easily under in-service welding.
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