等离子切割，由于融口上面大，下面小，切口断面总有一定斜度，不可能象火焰切割一样垂直，这是一世界性难题。
Plasma cutting, due to melt, the small mouth above, there is always a downward section incision, don't like probably as vertical flame cutting, this is a worldwide problem.
切割精度比火焰切割高，水下切割无变形，精细等离子切割则精度更高。
The cutting precision than high flame cutting, cutting no deformation, fine underwater plasma cutting is a higher precision.
针对不同的金属材料和切割断面的要求，用户可选用气体火焰切割和等离子切割两种方式。
For different metal materials and cutting cross-section, the user can choose gas flame cutting and plasma cutting in two ways.
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