常見例句

雙語例句

• In a wave soldering tank using a conventional screw pump, pulsation sometimes occurred in which molten solder spouting from the discharge nozzle moved up and down.
  本發(fā)明提供一種噴流銲料槽，在使用了現(xiàn)有的螺桿泵的噴流銲料槽 中，存在自噴流噴嘴噴流的熔融銲料産生上下波動即脈動的問題。
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