vertical position of welding

例句：

1. 1.The vertical position of the welding rod is critical for the strength of the joint.
   焊接棒的垂直位置对接头的强度至关重要。
2. 2.The engineer carefully adjusted the vertical position of the bolts to ensure stability.
   工程师仔细调整螺栓的垂直位置以确保稳定性。
3. 3.The vertical position of the welding rod was crucial in determining the quality of the joint.
   焊接棒的垂直位置在决定接头质量方面起着关键作用。