The paper, combined with evaluation function introduces the transformation of constrained problems into unconstrained ones, and offers an interval extension.
With the variety of wire feed speed, the interval of each phase of droplet transformation has a great influence on the breaking state of liquid Bridges.
随着送丝速度的变化，熔滴过渡各阶段时间影响液桥分断时的表面张力过渡。
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Secondly, shock layer corrective term near the interior point in the interval is constructed via the transformation of stretched variable.