基本解释[数学]球形弧英汉例句双语例句In the conventional MIG welding process this arc jumping phenomenon appears also at the time a globular transfer is converted into a streaming transfer.在通常的熔化极气电焊中，当由颗粒过渡转变到射流过渡时也出现这种跳弧现象。globular arc更多例句专业释义数学球形弧