基本解释下托锟英汉例句双语例句At the lower belt upward direction is the deviation of the roller group should move to the left, move right upper supporting roller group.皮带向上方向跑偏则托辊组的下位处应当向左移动，托辊组的上位处向右移动。lower supporting roller更多例句词组短语短语lower r supporting roller 下托锟lower supporting roller更多词组专业释义经济学下托锟