tie-down safety
常见例句
- Safety the highly effective convenience drainage system may prevent the valley between roofs and the down-flow pipe damage guaranteed the roof does not tie the snow and ice the icicle.
安全，高效便利的排水系统可以防止屋顶天沟及下水管的损坏，保证屋顶不结冰雪、冰柱。 返回 tie-down safety