The article is a discussion for calculation method of base-line values of declination in Lhasa Geomagnetic Observatory and has some results.
通过对拉萨地磁台磁偏角基线值计算方法进行讨论，得到了有益的结果。
The result shows that, as the crack stands on melt line of welded joint, the values of J-integral are different from those of both all-base and all-weld metal.
结果表明，无论是平面应变还是平面应力条件下，焊接接头J积分值都与全母材和全焊缝材料不同；
The impact energies in fuse line (FL) and heat-affected zone were evidently lower than the values of base metals.
熔合线处和热影响区的低温冲击功相比母材均显著降低。
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