The fine bead producing apparatus comprises a raw material melting device (1), a liquid drop forming device (2), a nodulizing condensing device (3) and a product collecting device (4).
它包括原料 熔化装置（1）、液体成滴装置（2）、球化冷凝装置（3）、产品收集装置（4）；
The results showed that the backside melting width can be predicted by the network model during P-GMAW bead welding the thin plate when the welding parameters were input variable.
结果表明，在P - GMAW薄板堆焊中，以焊接规范为输入变量，利用该网络模型能很好的预测背面熔宽。
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