双语例句
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The invention relates to a Cu-Al pipe welding joint, a preparation method and a special core rod thereof.
本发明涉及一种铜铝管焊接接头、其制备方法及专用芯棒。
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The present invention has low material cost, improved fiber performance, raised core rod making efficiency and capacity.
本发明不仅降低了原材料成本，还可以改善光纤的性能以及提高光纤芯棒设备的制造效率与能力。
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Acid corrosion could be used for tolerance adjustment of irregular core and core rod, replacing difficult operation of tolerance adjustment by machining.
三酸腐蚀可以对异形型芯、芯棒的尺寸公差进行调整，以代替机械加工对公差调整的困难操作。
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