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1·Further research should be held on accuracy accouplement.

应从精确匹配上进一步研究的结论。

2·The welding machine has strong anti-electricity fluctuation ability, it is available to produce in small quantity. At the same time, further research should be held on accurancy accouplement.

得出该焊机抗电网波动能力强、可小批量生产，同时还应从精确匹配上进一步研究的结论。